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The year began with frigid air occupying the Southwest and northern Rockies and this was reinforced by a push of Arctic air a few days later. The deserts of Arizona had measurable snow and flakes flew in Las Vegas for the first time in a half dozen years. The same disturbance moved across the Deep South and triggered the first severe weather of 2015 with a few twisters in Alabama and Mississippi. As the sub-zero chill passed across the Great Lakes, intense snow squalls formed which led to several disastrous traffic pile-ups in Michigan and Pennsylvania. The Michigan squalls caused a more than 100 vehicle accident along I-94. Meanwhile, a series of powerful ocean storms plowed into Norway sending hurricane force gusts across the northern British Isles and much of western and southern Scandinavia. Oslo was pounded by hurricane force gusts for more than 6 hours on the 12th. Much of the U.S. was tranquil during the second week of January, though the DelMarVa was hit by an icestorm. Bitter cold air crept southward along the border leading to widespread sub-zero readings from the northern Plains to New England. Meanwhile in the Indian Ocean, a super tropical cyclone, Bansi, moved away from Madagascar as it stirred up the southern Indian Ocean with nearly 200mph winds. The middle weekend of January saw freezing rain cripple the roads from eastern Pennsylvania to the valleys of New England as a small, but intense low produced record daily rainfall along the coastal plain on the 18th. In its wake, Pacific air dominated the nation with only a handful of stations remaining below freezing in the lower 48 states. Meanwhile the southern branch of the jet stream became active with a significant disturbance producing record snow in Amarillo, Texas and a swath of heavy wet snow along the east slope of the central and northern Appalachians early on the 24th. Wet snow accumulated several inches from New York City to Boston. Then an historic blizzard descended on the Northeast on the 26-27th with gales and snow accumulations between 1-3 feet from Long Island to Maine. The Boston area was particularly hard hit with near hurricane force wind gusts and more than 20 inches of snow. + Meanwhile, record warmth overspread the West and northern Rockies with readings in the 60’s and 70’s as far north as the Canadian border. The month concluded with Arctic air seeping back into the northern Plains, a soggy disturbance moving through the Southwest and a new storm forming the mid-Plains. January 2015 was chilly east of the Mississippi and in the southern Plains, though Florida and the Southeast Coast was mild. The coldest conditions were across the interior Northeast and south Texas. It was quite mild from the western Great Lakes across the northern Plains to the Rockies and West Coast. The warmest weather was in Nevada. Precipitation in January was below normal in most sections with the exception of the mid-Atlantic and New England coast as well as the southern Plains and parts of the Southwest and Montana. Some parts of California and Kansas had no rain or snow.
January 2013  

January 2013 U.S. Weather Summary The New Year began with more than 60% of the contiguous states having snow cover which slowly retreated during the first week of January. With the widespread snow cover, Arctic air made inroads across the Northeast dropping temperatures below zero from western Pennsylvania to Maine on the morning of the 3rd. Meanwhile, in the summer hemisphere, a blistering heat wave in southeast Australia caused contributed to devastating brush fires in Tasmania. Readings topped 108 at Hobart and 107 in Sydney. A winter storm brought several inches of wet snow to the western panhandle and Big Bend region of Texas on January 4th. Yet another southern branch disturbance dropped more snow in the same area on the 9th. This same storm triggered thunderstorms along the western Gulf Coast and the first three twisters of the year in Louisiana before lifting northward into the Plains. Some of the rain lessened the need for releases of new water on the lower Mississippi River which was at historic low levels. Meanwhile, a powerful tropical cyclone brushed the northwest coast of Australia before weakening and moving inland on the 12th and a push of polar air combined with a rich supply of moisture to produce the heaviest snowfall in Jerusalem since 1992. Meanwhile, a surge of record chill set dozens of record lows in the Southwest during the second weekend of January. This bitter cold air damaged the citrus crop in southern California and brought readings as low as -36F in the high valleys of central Colorado. A powerful disturbance over Texas, after causing more flooding in Louisiana, then brought a swath of wet snow across the central Gulf states and more than a foot of snow to the south-central Appalachians on the 17th. Meanwhile, a bout of wintry weather overtook northwest Europe snarling traffic in the UK with many flights cancelled out of London during the weekend of Jan 19-20. The icy chill invaded France and the Low Countries and frigid conditions were also noted in northeast China. The coldest air mass in several years oozed southward from Canada into the Midwest and Northeast causing heavy lake effect snow squalls that crippled Erie for more than a day. At the same time, warmth returned to the Rockies as readings rose to record levels in several cities on the 24th. A fast-moving disturbance brought a wintry covering of 2-5 inches to parts of southeast Virginia and northern North Carolina on the 25th. The pattern then shifted to allow heavy showers to reach the Southwest forcing the emergency evacuation of several dozen hikers near Tucson due to flash flooding. In the other hemisphere, a bout of heavy rain caused massive flooding in southern Queensland and northern New South Wales – this coming just after extreme heat and fires had scorched the region. A powerful tropical cyclone turned sharply south toward Madagascar at the month’s end. January concluded with a powerful cold front triggering numerous straight line wind damage across the Mississippi and Ohio Valleys and the first tornado fatility in 6 months. Record warmth preceded the front in the East. Overall, the first month of 2013 was mild east of the Rockies and frigid in the Great Basin. January was rather wet from Texas to the central Great Lakes and quite dry in the Far West and Southeast.

The following show the temperature and precipitation departures from normal across the nation during January 2013:
Temperatures Precipitation
February 2013  

The second month opened with predictions of an early spring (for only the 16th time) from Punxsutawney Phil on February 2nd. However, the atmosphere had different thoughts, at least for the Northeast coast where a blizzard struck on the 8th-9th. The area from central New Jersey to northern Maine received more than 6 inches of snow and a maximum of 40 inches was tallied in central Connecticut. Portland, Maine had its largest single day snowfall with just shy of 32 inches. Needless to say, traffic in all forms snarled to a halt and it took a few days to dig out. Meanwhile, a fast-moving storm in the Mississippi Valley spread heavy snow from Nebraska to Minnesota and spawned a powerful twister that ravaged Hattiesburg, Mississippi on the 10th. The same disturbance spread an icy mixture in the Northeast on the 11th. Another fast-moving storm dumped a swath of heavy wet snow from the Texas panhandle to central Pennsylvania on the 13th. A push of polar air into the nation was preceded by a band of snow in the Ohio Valley and eventually along the New England coast which raised the snow tally to over 32 inches so far in February at Boston. In the wake of the storm, there was a smattering of record minimum in the Deep South. Another disturbance brought back bitter air to the northern Plains and an outbreak of severe weather, mainly hail damage, to the lower Mississippi Valley on the 18th. The next is a series of disturbances from the eastern Pacific spun up large winter storm in the Plains that brought travel to a halt in the central Plains and mid-Mississippi Valley. The largest snowstorm in 20 years descended on eastern Kansas and Missouri on the 21st. Meanwhile, a slow-moving, but powerful disturbance in the eastern Mediterranean caused the worst flooding around Athens, Greece in nearly 50 years on the 22nd. For the third consecutive weekend, heavy snow fell in eastern New England with more than ten inches at Concord and Portland. At the same time, a powerful storm in the southwest Plains brought between 6 and 12 inches of snow to Denver on the 24th and then turned into a raging blizzard from the Texas panhandle to eastern Kansas on the 25th. As the storm migrated to the Northeast, a sloppy wintry mixture fell in the central and northern Appalachians. As February concluded, clouds covered much of the northern and eastern two-thirds of the country. February 2013 had numerous wide swings in temperatures from coast to coast, but when the month ended, the tally showed cooler than average weather in the Southwest and upper Midwest and slightly cooler than average in the Ohio Valley, Appalachians and mid-Atlantic region. It was rather mild along the Gulf Coast, in Texas and the northern Rockies and in northern New England. Precipitation was piecemeal with much needed rain in the eastern Gulf States and Southeast and a generally moist pattern from the Texas panhandle to the central Great Lakes. Parts of eastern New England were wet, but a large portion of the upper Tennessee and Ohio Valleys as well as the central Appalachians were dry as was most of Texas and the area west of the continental divide.

The following show the temperature and precipitation departures from normal across the nation during February 2013:
Temperatures Precipitation
March 2013  

The third month of the year began chilly, though lamb-like with little storminess. But it was not long until a potent disturbance drove southeastward from the Dakotas to the Virginia capes spreading a blanket of 5-10 inches of snow from near Fargo to west of Washington DC. Parts of northern Virginia tallied 20 inches of wet snow. A second disturbance then merged with the coastal storm to produce another swath of heavy snow from Long Island to southern Maine. The suburbs of Boston measured more than 20 inches and wind and waves along the coast caused more erosion. A moist disturbance coming inland in southern California brought snow to the southern and eastern Rockies and then a swath of heavy wet snow from Nebraska to upper Michigan. A band of thundershowers drenched the deep South and triggered severe weather in the southern Plains on March 10-11th. On the other side of the Atlantic, cold and moist weather overtook much of northwest Europe with snow in parts of France and the Low Countries and gales along the Irish coast. Paris had its largest snowfall in twenty years. Chilly weather settled into the eastern half of the nation with a handful of record lows in Texas on the 12th. But heat swelled into the Southwest as Thermal, California reached 100F for the first such reading in 2013 in the contiguous states. As very mild, dry weather surged into the high Plains and the upper Piedmont plateau, a number of brush fires spun up causing serious damage near Fort Collins and Columbia during St. Patrick’s Day weekend. A large, but sluggish storm brought heavy snow to the upper Midwest and another swath of 3-6 inches of snow from central Pennsylvania to central New England. This was followed by very cold conditions with a swatch of record minimum. Meanwhile, on the other side of the Atlantic, a bruising blizzard buried much of northern Ireland and central England with gales on the coast and several meter deep drifts in the hill country. Even the cliffs of Dover suffered as did the dikes of the Netherlands. A powerful early spring snowstorm dropped more than 10 inches of snow from Denver to central Virginia, including the biggest March storm on record in St. Louis. Surprisingly in the last week of the month, 48% of the contiguous states were snow covered compared to 7% last March. A large swath of chilly, cloudy conditions lingered across the Midwest and Northeast during the final work week of March. The month concluded with a brief mild spell in the East that was accompanied by dense fog leading to a 100 car pile up in the southern Virginia Mountains. There were less than 20 twisters reported this month. March 2013 was very cold in the upper Mississippi Valley and chilly from the central Plains to the East Coast with the exception of northern New England. It was quite warm in the Southwest. Most of the nation was drier than usual with the southern Plains being the driest region. Only parts of the upper Mississippi and Ohio Valley were wetter than average.

The following show the temperature and precipitation departures from normal across the nation during March 2013:
Temperatures Precipitation
April 2013  

Very cold weather dominated the eastern half of the country during the first few days of April while a final powerful disturbance in the southern branch of the jet stream brought a variety of inclement weather to the Deep South. Severe thunderstorms pummeled coastal Texas with baseball sized hail leading to severe property damage south of Houston. Flooding rains inundated the Gulf Coast and swatches of ice and snow were noted in the panhandles of Texas and Oklahoma as well as the southern Appalachians. The bitter cold weather finally relaxed in the Northeast during the first weekend of the month. A large spring storm gathered steam in the Rockies on April 8th, laid down a blanket of heavy snow from the central Rockies to the northwest Plains, including 20” on Rapid City, and produced a swath of severe weather in the eastern Plains and mid-Mississippi Valley on the 10th. The first severe storms of the season raked across much of Pennsylvania with hail and high winds too. Another wintery storm descended on the northern Plains during the middle weekend of the month dumping a record 15.8 inches of snow on Bismark and causing white-out conditions across much of North Dakota. Meanwhile a separate, but tandem disturbance brought flooding rains to the Gulf Coast. The first half of the month brought several hundred record minimum as chilly air held sway across the northern tier. Another disturbance raced northeast from the Rockies just after mid-month dumping heavy snow from northern Colorado to Minnesota. An outbreak of severe thunderstorms triggered wind damage in the Ohio and Tennessee Valleys and also brought repetitive storms to the Chicago area resulting in more than 5 inches of rain on April 17th. As the front moved to the Atlantic Seaboard, a squall line developed on Friday evening which caused disruption to air travel. Yet another snowstorm blanketed the high plains and eastern Dakotas on April 22-23 dropping at least a half of a foot of snow around the Twin Cities and raising the tally at Duluth to make April 2013 its snowiest month. Frigid weather in its wake brought the first record min in Minneapolis in almost 7 years and a slew of new record lows in the West. Fargo, ND finally topped 50F on April 26th for its latest occurrence on record and the floodwaters steadily rose along the Red River of the North. The weather calmed down for the final few days of April as temperatures returned to near seasonal levels. April 2013 was one of the chilliest on record in the northern Plains as temperatures averaged more than a dozen degrees below normal. It was a cool month from western New England to central Texas and as far west as the Great Basin. Only Florida and California averaged noticeably milder than normal. Pennsylvania was slightly milder than normal. April was a wet month in much of the Mississippi Valley , Great Lanes and parts of the eastern Plains. It was a dry month in the southwest Plains, most of the Southwest and from the eastern Ohio Valley to New England.

The following show the temperature and precipitation departures from normal across the nation during April 2013:
Temperatures Precipitation
May 2013  

The fifth month of the year began with bluster as a late season snowstorm descended on the high Plains and upper Mississippi Valley leaving more than a half foot of snow between Cheyenne and Denver and dropping snow on Minneapolis and an amazing 15” on Rochester, MN, their fourth largest snowstorm ever. Meanwhile, a large disturbance over Saudi Arabia was triggering heavy thunderstorms with hail and flooding in parts of the kingdom. The Deep South endured a bout of cool, wet weather during the first five days of the month as more than 8 inches fell on parts of Georgia and the Carolinas, resulting in flooding in the Smokeys. The latest snowfall on record occurred in Arkansas during the first weekend of May and more than four dozen new all-time record lows for May were established during the first week of the month from the Rockies to the Gulf States. The first rains of May overspread Pennsylvania on the 8th ending a 10 day dry spell. Meanwhile, flooding rains and gales swept across western Australia as the winter wet season started with a bang. A push of polar air dropped the temperature below freezing across much of the interior Northeast and Great Lakes region on May 14th, the same day that a surge of record heat moved across the upper Plains sending readings to 106 in Sioux City, Iowa and to 108 in nearby Nebraska. Meanwhile, tropical cyclone Mahasen descended on Bangladesh with 75 mile an hour winds. Right on cue, the eastern Pacific tropical storm season commenced with Alvin forming well south of Baja on May 15th. On the same day, a small, but intense disturbance in north Texas spawned a dozen twisters that resulted in more fatalities in one day (that is 6) than had occurred in the previous 12 months. The weekend of May 18-19 brought more than 50 twisters to the central Plains, including a series of storms that struck populated sections of central Oklahoma. Meanwhile, persistent heavy rain in North Dakota of order of 4 inches brought streams and rivers over their banks. Then on May 20th, an estimated EF5 tornado plowed through Moore, Oklahoma leveling most everything in its 17 mile long, one mild wide path. Two elementary schools with students still in classes were destroyed. The death toll stood at two dozen with nearly 250 injured as another round of severe storms took aim at Missouri on the 21st, but this was more tame than expected. As the Memorial Day weekend arrived, so did a discharge of unseasonably cold air into the Northeast resulting in record late snowfall in the mountains of New England. Whiteface in New York tallied more than 2 feet of snow and the higher elevations of interior Maine, New Hampshire and the Green Mts of Vermont also measured more than a half foot of snow. A warm, moist return flow into Texas combined with a jet stream disturbance to trigger slow-moving thunderstorms which produced flash flooding around San Antonio as more than nine inches of rain accumulated in a few hours on May 26th. The return of sultry air back into the upper Plains, mid-west and Northeast caused spotty severe weather as the first tornadoes of the year touched down near Erie County, Pennsylvania on the 28th resulting in several injuries. The month concluded with another potent disturbance bringing heavy rain to parts of the western high plains capping one of the wettest Mays on record in the north central states. Overall, May 2013 produced an odd thermal anomaly pattern with warmth rimming the central and eastern Great Lakes as well as the northern Rockies and the west coast states. It was coolest in the upper Mississippi Valley as well as the Gulf States and Southeast. As mentioned, it was rather wet in the upper Mississippi and Missouri valleys as well as the interior Southeast and much of northern New England. It was quite dry from the Ohio Valley to the mid-Atlantic states as well as from the southwest Plains to California including most of the Great Basin.

The following show the temperature and precipitation departures from normal across the nation during May 2013:
Temperatures Precipitation
June 2013  

The month began with more tragic news from a late evening outbreak of twisters that swept through the Oklahoma City region. Another 10 people lost their lives including an entire veteran chase team. Meanwhile, in Europe, an historic flood overwhelmed large sections of Austria, the Czech Republic and southern Germany forcing tens of thousands from their homes. A surge of heat in California’s central valley exacerbated a large fire near the southern end of the San Joaquin valley. At the same time, a potent, but small disturbance in Montana and North Dakota was producing serious flooding a tropical disturbance sprung to life in the southeast Gulf of Mexico and was christened Andrea on June 5th in the southeast Gulf. The storm made a bee-line to the Big Bend in Florida and came ashore on the evening of June 6 with 60mph winds. About a dozen tornadoes were spawned as Andrea accelerated northeast along the Atlantic Coast. Most of its effects were flooding rains with more than 3 inches inundating the region from Virginia to eastern Maine. Flash flooding snarled traffic in the urban areas of the Northeast. Another round of rain on the 10th turned the US Open in Merion into soggy fields. A long heralded mesoscale complex of thunderstorms erupted late on the 12th near Chicago and caused over 200 wind and hail damage reports as well as a dozen small twisters. The next day, another 200 plus reports of wind damage were noted in the mid-Atlantic region. A surge of record heat aggravated a large forest fire north of Colorado Springs, but a smattering of thunderstorms helped to combat the fires. Heat surged into Alaska with all-time records set at Valdez near Anchorage. The second named storm of the season, Barry, formed in the Bay of Campeche and moved inland south of Vera Cruz on June 20th. The first few days of summer brought a series of strong thunderstorms, including a derecho, from Iowa to Indiana. Another batch of potent thunderstorms erupted near Calgary, Alberta causing extensive damage and a host of fatalities. The world famous rodeo facility was severely flooded. As the month came to a close, a series of thunderstorms in Pennsylvania produced a variety of effects from a small tornado to wind and hail damage. As June ended, the desert Southwest was on the cusp of an historic heat wave as readings rose to near 120F in Phoenix and Las Vegas and approached 130F at Death Valley. Overall, June 2013 was warmer than average from California to Florida with the largest departures in New Mexico and Colorado. It was cooler than normal from the interior Northwest to the western Great Lakes and in parts of New England and the Southeast. June was very dry in the Southwest, Great Basin and eastern Rockies. It was a very wet month from the Appalachians to the East Coast in parts of the Ohio and upper Mississippi Valleys.

The following show the temperature and precipitation departures from normal across the nation during June 2013:
Temperatures Precipitation
July 2013  

The first full month of summer began with a blistering heat wave spreading from the deserts of the Southwest to the inland Northwest. Boise, ID topped 110F (43.5C) just a degree shy of their all-time maximum. Meanwhile, an old front stalled along the East Coast was slowly nudged westward by a building Bermuda High. The result was repetitive heavy showers from the interior Southeast to the Ohio Valley and some sections of the southern Appalachians received between five and ten inches of rain. The tropics sprung to life on July 7 as Chantal was christened in the Atlantic and made a bee-line through the Leeward Islands toward Hispaniola. A cluster of severe thunderstorms caused widespread urban flooding with nearly 5 inches of rain (the most on record) along with numerous power outages in Toronto on July 8th. On the other side of the globe, severe flooding caused devastation in the Szechuan region of China. A slow moving cold front brought flash flooding and even a tornado to the Pittsburgh area on July 10th. The front lingered over the mid-Atlantic region causing flooding in southern Virginia. Meanwhile, a weakening typhoon struck Taiwan on July 12th and proceeded into China. A fast-moving disturbance pushed southwest toward Texas on July 15th with a convoluted frontal system. A heat wave enveloped much of the eastern two-thirds of the country during the middle of July sending readings into the 90’s from the Rockies to New England. As the heat wave subsided, a new round of flooding rains speckled the country from Southwest to the East Coast during the final week of the month. Philadelphia airport was deluged with an all-time record 8.02 inches of the 28th. The Tropics gave birth to Dorian in the Atlantic and Flossie in the eastern Pacific, which skirted across the northern part of the Big Island. As July concluded, a heat wave was baking the Balkan states. July 2013 was cooler than average in the South and much of the Plains and central Mississippi Valley. It was quite warm across the Rockies and Pacific States as well as the entire Northeast and Mid-Atlantic region. It was wettest in the Southeast and oddly the Southwest. Dry weather dominated the Mississippi Valley and northern Plains as well as the Pacific Northwest.

The following show the temperature and precipitation departures from normal across the nation during July 2013:
Temperatures Precipitation
August 2013  

The month began rather tranquil in North America, but a brief, intense heat wave was overtaking western Europe. Meanwhile, the remnants of tropical storm Dorian sprung back to life over the Gulf Stream before being absorbed into an offshore front. A cluster of thunderstorms triggered severe weather in the western Plains with hail and tornadoes in parts of Colorado and Kansas during the first weekend of the month. The first week of August brought rather cool conditions to the nation with dozens of record low maximum and minimums. Repetitive thunderstorms in the central Plains and mid-Mississippi Valley dropped between 5 and 20 inches of rain over parts of Kansas and Missouri leading to serious flooding in the heartland and on the tail end of the disturbance, a flash flood tore through the town at the base of Pikes Peak. Meanwhile, parched and torrid conditions across interior southern California led to a destructive Silver Fire that burned through parts of San Bernardino County. At mid-month, the Tropics came alive with Erin formed and dissipated in the eastern Atlantic as a tropical disturbance impaled itself on the Yucatan peninsula. Meanwhile, record chill invaded the Great Lakes and Northeast as a large high from Canada settled over the region and it circulated rather cool, moist air into the Southeast. A surge of heat reached from the northern Rockies to the upper Plains just after mid-month as forest fires were slowly contained in Idaho. Another fire was ignited near Yosemite and threatened the power and water supplies that feed San Francisco late in the month. Tropical storm Fernand formed and dissipated within a day near Vera Cruz in southern Mexico. Meanwhile, the remnants of Tropical Ivo in the eastern Pacific contributed to flash flooding in the desert Southwest. The month concluded with heat persisting over the high Plains and eastern Rockies which caused some school and sport cancellations due to excessive heat. August 2013 was notably cool from the east-central Plains to the Atlantic Seaboard, including New England, but not Florida. It was warm in Texas and the central and northwest Rockies, but cool in the Southwest. Rainfall was above normal in the Sierra and Cascades as well as the mountains of the Southwest. It was moist in a swath from the western Dakotas to the Ozarks and then into the Southeast. The southern Plains, Great Basin, lower and upper Mississippi Valley and portions of the interior Northeast were rather dry.

The following show the temperature and precipitation departures from normal across the nation during August 2013:
Temperatures Precipitation
September 2013  

As the ninth month began, eyes turned to the Tropics where the wait continued for the first Atlantic hurricane in a much heralded active season. A cold front pushed to the Atlantic seaboard late on Labor Day ending a spell of rather sultry weather in the East with severe weather concentrated in New York. The first hurricane of the season was finally born in the far eastern Atlantic on September 11th. Humberto tied the modern era late start that occurred in 2002 with Gustav and at the same time, Gabrielle was reborn as a tropical storm as it took a swipe at Bermuda and later took aim at Nova Scotia before being absorbed into a front. Meanwhile, a persistent flow of moist air into the Southwest and Great Basin triggered flash flooding in parts of Utah and Colorado. The Boulder area was particularly hard hit with widespread devastation in the hills just above the city. This was one of the worst floods in this area in several decades as more than half dozen lives were lost and damage estimates were in the billions of dollars. A new tropical storm, Ingrid, formed in the Bay of Campeche and wandered toward the Mexican Gulf coast strengthening to hurricane status when it moved inland north of Tampico on September 16th. Meanwhile, hurricane Manuel buffeted the west coast of Mexico at the same time and brought Acapulco to a halt with serious flooding. This was the first time since 1958 that dual storms affected Mexico simultaneously. A push of cool air into the Northeast brought the first record minimum in more than 6 years to Boston on September 18 as the mercury tumbled to 44 and Martha’s Vineyard fell to freezing. The Atlantic remained eerily quiet especially in light of a predicted active season. Super typhoon Ugasi took aim at Hong Kong as summer came to a close and brought gales and flooding rains as it moved north of the city. A quiescent weather pattern settled over the nation during the final ten days of the month, though it did turn wet and windy in the Pacific Northwest. September 2013 was warmer than average across much of the country from the Pacific Northwest to the interior Southeast. Only a swath from Michigan to Maine and south to Virginia was cooler than normal as well as a few pockets in the Southwest. Rainfall was far above normal in the western third of the country from the Rockies to the Northwest Coast. Only a portion of southern California stayed dry. It was also moist in a swat from south Texas to the lower Ohio Valley and in upper New England. Dry weather dominated the country from the Plains to the Eastern Seaboard.

The following show the temperature and precipitation departures from normal across the nation during September 2013:
Temperatures Precipitation
October 2013  

The atmosphere threw off its early autumn slumber as Tropical Storm Karen sprung to life in the eastern Gulf of Mexico and a fierce early winter storm took aim at the eastern Rockies and northern high Plains. Karen tracked slowly north and then turned northeast before dissipating as it reached the Florida panhandle. The first widespread snow of the early fall covered the Front Range from the Palmer Divide in Colorado to the Black Hills. It was an historic snowfall in western South Dakota as Rapid City tallied an all-time October record of 23” and Lead measured 58”. All ground transportation came to a halt for a couple of days and thousands of cattle perished in the blizzard. Severe storms pelted the eastern Plains with an EF4 twister ravaging Wayne, Nebraska. Meanwhile, the east coast of China took a one-two wallop as a pair of super typhoons barreled inland a few hundred miles south of Shanghai. After several days of record warmth, a sharp cold front triggered a bout of severe storms in the Northeast on October 6-7. The remnants of Karen connected with a large, weak upper level disturbance to bring torrential rains to the Susquehanna Valley on the 11th. Flooding was restricted to the prone areas since it had been rather dry. On the other side of the world, intense tropical cyclone Phailin made landfall along the central east coast of India on the 12th, but the evacuation of more than a million people helped preserve many lives. A few days later, a powerful typhoon named Wipha struck the east coast of Japan causing serious flooding. Rather chilly air settled into the West setting a handful of new record minima at mid-month. The first lake effect snows occurred in upper Michigan during the third weekend of the month with several inches falling and a few days later snow showers dotted Pennsylvania. At the same time, the Atlantic came to life for a few days with weak tropical storm Lorenzo forming well east of Bermuda. As the month concluded, heavy rain caused serious flooding from east Texas to southern Arkansas. October 2013 averaged cooler than normal from the West Coast to the central Plains with the chilliest reading in the northern Rockies. It was mildest in the Northeast. As is typical, October was a dry month for much of the country. It was moist in the northern Rockies and Dakotas and there was a thin corridor of wet weather from Texas to the eastern Great Lakes in the Chesapeake watershed.

The following show the temperature and precipitation departures from normal across the nation during October 2013:
Temperatures Precipitation
November 2013  

The month began rather settled with plenty of Pacific air flooding the nation. However, a large high pressure system with barometer readings above 30.70 inches settled over the Northeast with chilly mornings. The remnants of Pacific tropical storm Sonia added to the rainfall along a front crossing the Mississippi Valley. Meanwhile, super-typhoon Hayian roared across the central Philippines on the 7th with winds over 170 mph. The devastation was particularly awful as a tidal surge inundated the city of Tacloban and several thousand lives were lost. The diminished storm then made a second landfall in northern Vietnam a few days later. The first Arctic outbreak of the season descended on the upper Midwest on the 11th with subzero readings near the Canadian border and a skiff of snow southeast of the Great Lakes. Record minima were common in the Deep South. A rapid return to milder conditions took place at mid-month as did a quickly developing storm which spawned several dozen tornadoes in the Midwest on the 17th. Two of the storms were ranked as EF4 in Illinois. A handful of fatalities occurred as the severe storms swept east from Illinois. Meanwhile, the Atlantic came to life for one last time as Melissa formed well east of Bermuda on the 18th and moved steadily north into the colder waters. A push of polar air steadily covered the eastern two-thirds of the country during the final full weekend of the month causing the first November sub-freezing day in New York City since 1976. Heavy snow coated the southern Rockies, especially parts of New Mexico with an icy rain in parts of Texas and Oklahoma. The Thanksgiving travel was disrupted in the southern and eastern half of the nation by the large swath of heavy rain and a narrow corridor of heavy snow in the western Appalachians. The western half of Pennsylvania had a few inches to nearly a foot of new snow. The month ended on a quiet note for much of the nation. November 2013 was chillier than average in the eastern two-thirds of the nation with the coolest weather centered over the Gulf States. It was mildest in the Far West. Precipitation was somewhat sparse across the country, with a few swaths received above average rains from the Southwest to western high Plains and around the eastern Great Lakes and in south Texas and Florida.

The following show the temperature and precipitation departures from normal across the nation during November 2013:
Temperatures Precipitation
December 2013 Weather Summary  

The final month of 2013 started frigid and stayed that way for a few weeks. In fact the first third of December saw readings averaging more than 15 degrees below normal from the Dakotas to central Oregon. Minimums reached as low as -40F in Montana and Denver had its coldest 5 day stretch since 1983 in December. Snow and ice became frequent visitors to the nation with 63% of the country being snow covered on December 9th. Snow squalls buried communities in the lake effect belts of the eastern Great Lakes. A fierce wind storm pounded northern Europe during the first week of the month. A significant winter storm effected the Northeast quarter of the country during the third weekend of December with a swath of half of foot of snow. Meanwhile, frigid air and snow invaded the Middle East with snow in Syria causing greater hardship to the refugees and the first snow in Cairo in decades. A surge of milder, moist air from the Gulf States overspread the eastern half of the country during the fourth weekend of the month. Flooding rains caused some havoc in the lower Mississippi and Ohio Valleys. Crippling ice storm wreaked havoc from Arkansas to the St. Lawrence Valley with Toronto and Burlington especially hard hit. Record warmth in the East set new December monthly records from Georgia to Virginia. Meanwhile, a fierce pre-Christmas storm blasted the northern half of the UK with hurricane force winds. The period leading up to New Year’s brought record warmth to the West Coast and above average readings to much of the rest of the nation. However, another blast of frigid air was poised to sweep across the northern tier at New Years. December 2013 found a see-saw battle between warm and cold air in the Northeast with mild conditions winning from Pennsylvania southward and cold air triumphing across interior New England. The center of chill was in the northern Plains and western Great Lakes where International Falls tallied their second coldest December of record. The valleys of the Great Basin stayed very cold too. Much of the Southeast and mid-Atlantic region remained mild and sections of the Southwest. There were three corridors of moist weather during December. One stretched from the Florida panhandle to New Jersey. A second wet zone was noted from west Texas to western Ohio and a third snowy region was seen from Wyoming and Montana to northern Wisconsin. It was very dry along the Pacific Coast and from New Mexico to Iowa.

The following show the temperature and precipitation departures from normal across the nation during December 2013:
Temperatures Precipitation
January 2014  

The New Year began with a large winter storm brewing over the middle of the nation. Bitter chill occupied much of the northern tier states and Canada as a fast-moving disturbance was propelled northeast from the Gulf States. The outcome was a widespread moderate snowfall from the Midwest to the Mid-Atlantic, but an outright blizzard paralyzed sections of southern New England, including Boston. Bitter chill encompassed the Northeast in the wake of the storm. Meanwhile, heat was the story in Rio De Janiero as Brazil planned for the World Cup in July. A surge of Arctic air plunged into the northern Plains and Midwest on January 5th and was preceded by a swath of heavy snow in the mid-Mississippi and Ohio Valleys. The ‘polar vortex’ as it was dubbed by the media brought the chilliest readings to the Midwest and Ohio Valley since 1994. Widespread record minima were set from Minnesota to Mississippi and eastward to the Atlantic Seaboard and daytime maxs stayed below zero from the northern Plains to the eastern Ohio Valley. The warm-up afterward was without a storm and the nation experienced an early January Thaw for nearly 10 days at mid-month with chilly restricted to the border states. Meanwhile, a blistering heat wave struck Melbourne during the Australian Open Tennis Tournament with readings over 110F. Oddly, a warm spell in southern California during its driest year on record led to a brush fire that sent a plume of smoke across the city. During the final ten days of the month, several surges of bitter cold air swept from the tundra of northern Canada to the Midwest and Northeast. The first push of polar air was preceded by a fast-moving snowstorm along the I-95 corridor with 6-12 inches of snow snarling the region from Philadelphia to Boston. As the frigid air made inroads across the Deep South, winter storm warnings were issued in Houston for the first time in 4 years and icy rain snarled traffic in Austin. A lake squall caused white-out conditions in northwest Indiana leading to a massive pile-up on I-94. The final week of the month saw another surge of bitter chill into the Midwest and Ohio Valley. Along the periphery of the polar air mass, a swath of snow and ice coated the region from the eastern Gulf Coast to the Northeast shoreline. In the Deep South, most commerce stopped for a day to let the storm pass and Atlanta had gridlock for a day due to icy roads. As the month concluded, some showers finally invaded California ending a very long dry spell. January 2014 was the coldest nationwide since 1994 with the center of chill over the Great Lakes and upper Mississippi Valley. The chill extended to the Gulf Coast and Atlantic Seaboard, though Maine escaped the prolonged cold. The northwest Plains, Rockies and Pacific States were milder than average. Much of the nation was exceptionally dry, with large parts of the Southwest quarter of the country not having any rain or snow. The region around the Great Lakes and Northeast as well as parts of the northeast Rockies were moist.

The following show the temperature and precipitation departures from normal across the nation during January 2014:
Temperatures Precipitation
February 2014  

The month began with the axis of chill tilted toward the West and a corridor of moisture aimed toward the East. A swath of snow fell from north Texas to southern New England just as the Ground Hog predicted 6 more weeks of winter. The storm stymied the departure of Super Bowl fans from the NYC area. Barely had the Northeast cleaned up then another mixed storm descended on the region on the 5th snarling traffic from the Plains to New England. Meanwhile, bitter cold air poured into the Northwest and combined with a Pacific disturbance to produce heavy snow in much of western Oregon and this was followed by a notable ice storm, but it occurred on the second weekend on February. Meanwhile, a rapidly developing cyclone brought the worst blizzard to Tokyo in 45 years. As the second week of February began, a series of disturbances progressed from Texas to the Atlantic Seaboard spreading a variety of wintry precipitation across the Gulf States and coastal Southeast. The main disturbance tracked from the eastern Gulf to the mid-Atlantic coast causing a crippling ice storm in the Southeast and a snarling snow storm in the Northeast. A swath of 6 to 18 inches of snow fell from central North Carolina to New England shutting down transportation at the major eastern hubs. Meanwhile, a series of powerful storms in the UK brought record flooding to sections of England at mid-month with fierce winds at the coast and another snowstorm pummeled eastern Japan just after mid-month. A flow of milder air from the Pacific brought relief to much of the nation just after mid-month, but an icy rainstorm caused havoc on the highways in parts of Pennsylvania and the interior Northeast. Meanwhile, a large fast-moving disturbance triggered the first severe weather outbreak in the middle of the country on February 20th with a dozen twisters touching down in Illinois and a blizzard battering parts of Minnesota. The next day, thunderstorms triggered a handful of twisters east of the Appalachians. As the front settled across Florida, it caused heavy thunderstorms with a tornadic cell bringing the Daytona 500 to a halt. Bitter chill returned to the northern third of the country as the month concluded with readings well below zero at daybreak, but other than for patchy snow showers, the eastern half of the nation remained dry. As February came to a close, a new series of storms from the Pacific promised some drought relief to California and ended a long dry spell in the desert Southwest. February, 2014 was bitter cold from the northern Rockies to the central Great Lakes and middle Plains. Chilly conditions extended to the central and western Gulf coast and east to the mid-Atlantic and most of the Northeast. Even the Northwest was cold. The mildest weather was found in the Great Basin and over Florida. This month culminated a remarkably cold winter, one of the top five chilliest in the upper Midwest. It was a wetter month than January with less extensive dry regions. However, the Southwest remained quite dry as did the southern Plains and a portion of the upper Missouri Valley. It was moist in much of the Pacific Northwest, parts of the northern Rockies and upper Mississippi Valley as well as a stripe across the Mid-Atlantic region.

The following show the temperature and precipitation departures from normal across the nation during February 2014:
Temperatures Precipitation
March 2014  

The month began with a minor miracle of heavy rain in southern California. The rains were too heavy in some locations leading to mudslides and flooding, but the rainwater did help a bit. Meanwhile, a complex storm spawned by the western disturbance brought icy rain and snow from Texas to the mid-Atlantic region. Heavy snow snarled the region from Baltimore to Raleigh on March 3rd. Bitter chill occupied a large swath of the northern Rockies to the Great Lakes. International Falls tumbled to -33F. The bitter chill lead to the most widespread ice cover on the Great Lakes since the late 1970’s. A number of new March minimum record were set in the northern third of the nation during the first week of the month. However, record warmth continued to dominate the Southwest with readings into the 80’s in southern California. A new storm track from the southern Plains to the eastern Great Lakes during the second week of March produced a swath of heavy snow and even blizzard conditions near the southern and eastern Great Lakes on the 12th. St. Patrick’s Day was greeted by a blanket of white from the central Appalachians to the mid-Atlantic coast as more than 6 inches of snow shutdown the Nation’s Capital. Meanwhile, record warmth persisted along the California coast. There were no equinoctial storms this year as the period from March 18-23 was tranquil and rather dry. However, the intersection of a moist front and a geologic shift lead to one of the worst mudslides in recent history in the Pacific Northwest on the 23rd. Arctic invaded the eastern two-thirds of the country during the final weekend of the month and a powerful disturbance dropped several inches of snow from northern Virginia to eastern New England with a blizzard blasting the Cape, down-east Maine and Nova Scotia. In its wake, subfreezing temperatures were driven into the Deep South on March 26th. As the month came to a close, a series of disturbances brought heavy rain and snow to the northern half of the West Coast and a small, but intense coastal storm brought wet snow to parts of the eastern Great Lakes and northern Appalachians. March 2014 capped a frigid winter in the Midwest and Great Lakes as temperatures averaged more than 10 degrees below normal from Minnesota to Maine. Only south Florida and the area west of the continental divide were mild. California had the largest positive departures. Overall, it was a dry month for much of the country. The Pacific Northwest and northern Rockies were wetter than average, but the Plains, Midwest, Ohio Valley and Mid-Atlantic region were parched. A section of the Gulf Coast was wet.

The following show the temperature and precipitation departures from normal across the nation during March 2014:
Temperatures Precipitation
April 2014  

The month began with an intense snowstorm blanketing the Dakotas and Minnesota. Then a few days later, a powerful disturbance from the Rockies spawned a handful of tornadoes in the mid-Mississippi Valley and yet more snow in the western Great Lakes. Duluth tallied another foot of snow in the 4th. A new disturbance from the Gulf States brought a soaking rain to the mid-Atlantic and Northeast along with a slew of severe thunderstorms in the Southeast on the 7th that caused flooding in sections of Mississippi. A surge of warm air finally brought readings to 80 degrees in the Dakotas on the 9th. A powerful cold front crossed the Plains, dumping snow from Colorado and the Texas panhandle to upper Michigan while triggering a host of severe storms from the southern Plains to the southern Great Lakes. Readings soared into the 80’s in the East with a handful or record maxima on the 13th. Another storm brought a swath of snow across the North Country at mid-month. The weather quieted down for a week with warmth steadily building in the mid of the nation at Easter. Snow fell again in northern Minnesota, raising the season’s tally to fourth place in Duluth. On the tail end of a cold front in the Carolinas, an outbreak of twisters caused the year’s first tornado fatality on April 25. The final weekend of the month brought a large disturbance to the middle of the country. Flooding rains were noted in the Dakotas with severe storms in the lower Mississippi Valley and record chill into the southern Plains. An outbreak of 3 dozen twisters caused massive damage and a dozen fatalities in Oklahoma and Arkansas on the 27th. Then another almost 100 twisters the next day wreaked havoc in the Gulf States killing another 25 individuals, mainly in Mississippi. Then a nearly stationary cluster of thunderstorms dumped between 12-18 inches of rain around Mobile Bay and the western panhandle of Florida during the final two days of April. The flooding was very serious. Overall, April 2014 saw the chill retreat to the Border States with the deepest chill from northeast Montana to upper Michigan. It was slightly cooler than normal in the Northeast and the lower Mississippi Valley with warmth dominating the Far West and much of the southwest Plains and parts of the Ohio Valley. Rainfall was spotty and sparse from the Missouri Valley to the West Coast. There were three corridors of wet weather. One from across the eastern Gulf, the second across the mid-Mississippi and Ohio Valleys and the third in the upper Mississippi Valley and western Great Lakes. Much of the Northeast and central Appalachians were quite dry until the big rains on the final day of the month.

The following show the temperature and precipitation departures from normal across the nation during April 2014:
Temperatures Precipitation
May 2014  

The month began with cleanup from two tragic floods. One disaster struck Afghanistan with a mudslide that took 2,000 lives while the other flood caused havoc in the Florida panhandle. The first weekend of the month brought record heat to parts of Texas and the earliest 100F reading in Wichita, KS. The heat wave persisted for several days. An active cold front triggered a spate of severe thunderstorms on May 7-8th in the upper Mississippi Valley. Minnesota and Iowa saw more than a dozen tornadoes. Another disturbance on Mother’s Day weekend triggered nearly three dozen twisters from Nebraska to Indiana and brought a heavy wet snow to central Colorado on Sunday, May 11 with more than 6 inches falling around Denver. There was a sharp contrast in maximum temperatures on Mother’s Day. Fierce winds also invaded the Southwest with blowing dust and sand in the deserts and vicious brush fires around San Diego which were set by arsonists. A surge of very warm, humid air preceded a sluggish cold front on May 15-16 in the eastern states. Excessive rains caused localized flooding in parts of the mid-Atlantic and Northeast just after mid-month and chilly air flowing off Lake Superior brought snow to the upper peninsula of Michigan. Record lows were widespread in the Deep South on May 16-17. Meanwhile, a large slow-moving storm brought historic flooding to sections of the Balkans during the middle weekend of May. An odd event occurred on May 20 when two tornadoes affected Puerto Rico on the same day. Meanwhile, a series of small, but intense thunderstorms trained over Elk County on the 21st causing the Clarion to peak at its second highest flood level on record. The center of action during the Memorial Day weekend was in the high Plains and eastern Rockies where heavy rains caused a 4 mile-wide mud slide in western Colorado and a severe thunderstorm spawned a tornado in northwest North Dakota. Meanwhile, Hurricane Amanda rapidly intensified to a Cat 4 storm, the strongest so early in the season in the eastern Pacific south of Baja on May 26th. The final week of May saw much needed, though too intense rain falling across parts of Texas and New Mexico. Flooding rains hit southern Louisiana as Lafayette notched more than 6 inches on May 28. The month concluded with chilly air visiting the Northeast once again. May 2014 presented an unusual horseshoe shaped cool anomaly from the Gulf Coast to the southern Rockies and then arcing northeast into the upper Mississippi Valley and Great Lakes. The coolest weather as in the Dakotas and east Texas. The mid-Atlantic coast and West Coast were the mildest with the Delmarva Peninsula and southern California registering the larger anomalies. More of nation was drier than normal with the interior Northwest and Southwest having the least rain. It remained dry in the central Plains and turned dry in the Tennessee Valley. The Gulf Coast, much of Texas and the central Rockies were wet. It was moist east of the Appalachians and across the Northeast, the upper Lakes and west of the Cascades.

The following show the temperature and precipitation departures from normal across the nation during May 2014:
Temperatures Precipitation
June 2014  

The sixth month began with heat in the southwest Plains, but otherwise much of the country noted seasonable conditions. An active disturbance along an old front produced a dozen twister around Nebraska on the 3rd with Omaha registering its wettest June day with over 5 inches of rain. More storms erupted with a small, but intense low in the western Plains on the 8th. A handful of twisters touched down in Colorado disrupting many outdoor events. Meanwhile, a heat wave overtook parts of central Europe and Russia with readings near 100F in Germany and it was followed by severe thunderstorms. A spell of dull, damp weather descended on the Northeast during the second week of the month. Another powerful hurricane, Christina, spun up to a category 4 strength in the eastern Pacific before weakening and sending a moisture plume into Mexico. Severe weather infiltrated the central Plains during the middle weekend of June with a dozen twisters and numerous hail and wind damage reports. Sioux Falls, SD was deluged by its heaviest rainfall in a single day, more than 4.6 inches. A couple days later, another disturbance spawned a pair of tornadoes that tore through northern Nebraska causing the state’s first twister fatalities in 10 years. In the storm’s wake, more flooding rains fell on eastern South Dakota. Yet another active day was noted on June 18 raising the three day tally to 105 twisters. The same disturbance brought unusually heavy late snow to the Bitterroots of Montana. As summer began, the weather pattern turned tranquil across much of the nation. A series of thunderstorm clusters brought excessive rains to sections of the central Plains between June 24-27 including flash floods to Des Moines. As the month came to an end, the fourth and fifth tropical storms of the season, Douglas and Elida, sprung to life in the eastern Pacific as the Atlantic was about to give birth to Arthur off the Florida Coast. June 2014 continued to be cooler than the long-term mean in the northern Rockies and upper Plains. Temperatures averaged within a degree or so of normal over much of the remainder of the country except for California, the Southwest and portions of the Mid-Atlantic. Rainfall was near record maximums for the sixth month from Montana and the Dakotas to parts of Nebraska, Minnesota, Iowa and Kansas. It was also rather wet in the Mississippi Valley and parts of the Great Lakes and Ohio Valley. Most of the Southeast was drier than average and all of the Southwest, Great Basin and Northwest had very little or no rainfall.

The following show the temperature and precipitation departures from normal across the nation during June 2014:
Temperatures Precipitation
July 2014  

The first full month of summer started with the development of Hurricane Arthur near the Florida Coast and its quick exit east of Cape Cod late on the 4th of July. Arthur became the first hurricane to strike the U.S. on Independence Day as it passed through the Outer Banks of North Carolina. The storm was preceded by sultry conditions in the eastern states along with heavy thunderstorms. The eye of Arthur crossed Cedar Inlet at midnight and passed 30 miles west of Cape Hatteras while producing a sustained wind of 70mph with gusts to 96 at a buoy in Pamlico Sound. The storm rained out holiday plans from Long Island to eastern New England dropping more than 6 inches of rain on New Bedford. Eventually Arthur sped its way across Nova Scotia on the 5th. The monsoon started with a blast in Phoenix as a large dust storm preceded the first widespread showers on July 3rd. Meanwhile in the western Pacific, super typhoon Neoguri smashed into Okinawa with wind gusts exceeding 100 miles an hour and then turned northeast. A cluster of powerful thunderstorms caused widespread wind damage in the Northeast on July 8th with a twister near Binghamton resulting in 4 fatalities. Pennsylvania tallied more than 100 reports of wind damage from a derecho in the eastern half of the state along with the strongest twister, an EF2, in Sullivan and Bradford counties. On the far side of the continent, a heat wave overtook British Columbia leading to fires in north central Washington, heavy rains in Juneau led to widespread flooding and large storms caused hail and flooding in southeast Wyoming. On the other side of the Pacific, powerful typhoon Glenda shutdown metro Manila for a day at mid-month and then intensified again and struck near Hainan, China. A record cool air mass spread into the upper Plains and Great Lakes as Canada emptied cooler, dry weather into the nation at mid-month. Maximum temperatures were as much as 30 degrees below normal in the southern Plains due to clouds and showers as both Jackson and Memphis notched their chilliest July day of record. The central Pacific came to life on the 18th as tropical storm Wali formed southeast of Hawaii and threatened the region with squalls and flash flooding. Rare thunderstorms around Los Angeles brought lightning that killed one man and injured a half dozen at a beach in Venice. Another shot of unseasonably cool weather reached the eastern and southern half of the country during the final few days of July. Montgomery, AL tied its lowest July reading with 59F. During the last week of the month, the second tropical depression of the Atlantic season formed and dissipated as it neared the windward islands, then a new disturbance was named Bertha as it crossed the lesser Antilles on August 1st. July 2014 averaged rather cool from the high plains to the mid-Atlantic coast with the chilliest weather centered over the mid-Mississippi Valley. Parts of south Texas, Florida and New England were slightly milder than average. The entire West was warmer than normal with the warmest conditions in the interior Northwest. Rainfall was generally below normal across large sections of the nation. New England was moist and a splotchy zone from Nevada to the mouth of the Mississippi was wetter than average, including the Rockies. Florida was moist and the driest region was centered in the northern Plains.

The following show the temperature and precipitation departures from normal across the nation during July 2014:
Temperatures Precipitation
August 2014  

The month began with yet another hurricane being born in the Atlantic. Technically, it took until the 4th for Bertha to reach this strength as it exited from the eastern Bahamas after cutting a swath across Puerto Rico and the DR. Meanwhile, late summer thunderstorms in California spawned mudslides in southern sections and triggered fires in the northern Sierra. Also, powerful hurricane Iselle approached the Hawaiian Islands with squally winds and heavy rains and weakened to tropical storm strength while passing through the Big Island. Meanwhile, hurricane Julio followed on its tail, though weaker and farther north a few days later. The Northeast was treated to hazy skies for a couple of days as a dense smoke plume from forest fires in northern Canada filtered into the region. Once again, heat was suppressed east of the Rockies during the second weekend of August. A potent disturbance from the upper Lakes dropped southeastward on August 12-13 causing flooding in Detroit, Baltimore and eastern Long Island where more than a foot of rain fell in a few hours, an apparent state record. The middle of August saw the eastern Pacific come alive again with Karina and Lowell forming west of Baja. Monsoon moisture brought a 5 inch plus rainfall to the Salt River Valley in Arizona. Flooding shut down parts of I-17. A cloudburst caused much devastation around Hiroshima on August 20. A stalled disturbance in the Northeast triggered a rash of severe thunderstorms in Pennsylvania leading to two tornadoes on the 21st. The Atlantic finally came alive on August 24th with Christobal being named in the southeast Bahamas. The storm meandered northward and passed well west of Bermuda on the 27th before racing into the North Atlantic and slamming into Iceland. A surge of hot, humid air reached into the mid-Mississippi Valley and Southeast during the last week of August as very cool air accompanied a chill rain in Montana. Meanwhile, powerful hurricane Marie sent its large swells into southern California during the final days of the month. August 2014 brought a very unusual temperature departure pattern with a serpentine region of below normal temperatures from the Southwest into the Dakotas then south into the lower Mississippi Valley and then eastward from the Carolinas to central New England. Warmth was limited to Pacific Northwest, parts of the southwest Plains and northern Maine. Rainfall was abundant from the northern Plains to the interior Southwest, including the inland Northwest. Another moist corridor stretched from Nebraska to the central Appalachians. Dry conditions dominated the Gulf States and southern half of the Plains as well as parts of the Southeast and spotty regions in the Great Lakes and southern New England.

The following show the temperature and precipitation departures from normal across the nation during August 2014:
Temperatures Precipitation
September 2014  

As have the previous two months of the summer season, September began with another tropical storm forming this time in the Bay of Campeche. Dolly was named late on the first and made a beeline for the Mexican coast striking near Tampico on the 3rd. Late summer heat dominated the first few days of the month with readings well into the 90’s east of the Appalachians. A spate of severe thunderstorms marked a cool front on the 2nd in the mid-Atlantic region. Moisture from weakening hurricane Norbert brought flooding rains to the Southwest. Phoenix tallied its wettest day ever with over 3 inches in one day. Meanwhile, a very active monsoon brought nearly stationary thunderstorms to the Punjab region between India and Pakistan resulting in serious flooding. The chilliest air mass of the last summer season spilled from the Arctic into the Canadian prairies and then into the northern Plains and eastern Rockies. Record early snowfall caused widespread tree damage and power outages from Edmonton to Calgary with the earliest first inch of snow in a swath from eastern Montana to western Nebraska on the 11th. Widespread minimums in the 30’s were noted in a quarter of the states during the middle weekend of September. Meanwhile, the tropical Atlantic sprung to life with hurricane Edouard just after the average peak of the season. Edouard strengthened to Category 2 as it turned north in the central Atlantic well east of Bermuda at mid-month. On the other side of the continent, powerful hurricane Odile struck Cabo San Lucas as a Category 3 storm, the strongest on record to hit Baja, before slowly weakening as it moved north through the Gulf of California. Its heavy rains flooded parts of the Southwest and then caused flash flooding in sections of west Texas during the final weekend of summer. As the season transitioned so did the warmth in the eastern half of the nation. During the first few days of autumn, a tranquil though warm weather pattern dominated the High Plains. The first rainstorm of autumn descended on the Pacific Northwest late in the month. September 2014 was cooler than average over a large section of the northern Plains, upper Mississippi Valley, Great Lakes much of New England. The coolest region was in lower Midwest. Meanwhile, it was a warm month from the Southeast to Texas and across the West with the largest departures in California. Rainfall was above normal in much of the Southwest and western Texas as well as from northern Florida to southeast Virginia and in a swath from Kansas to northern Ohio. The Northeast, mid-Atlantic and Tennessee Valley were dry as was the northern Plains and much of the interior Northwest and California.

The following show the temperature and precipitation departures from normal across the nation during September 2014:
Temperatures Precipitation
October 2014  

The tenth month began with warmth being pushed off the East Coast as a chilly air mass spread the first flakes of the season into the Midwest. Meanwhile, the western Pacific had a pair of typhoons that affected Japan with the first, PhanPhon, dropped up to 10 inches of rain on Tokyo and the second, super typhoon VongFong, took dead aim on Japan again. VongFong pummeled Okinawa with gales for more than two days and more than a foot of rain. Meanwhile, intensifying tropical cyclone Hudhud struck the central east coast of India at mid-month causing extensive damage and later its moisture triggered a sudden blizzard in Nepal that trapped and killed 27 hikers. The Atlantic came alive again as subtropical storm Fay took aim at Bermuda and intensified as it passed over the island on the 12th. Another storm, Gonzalo formed near the Leeward Islands and skirted just north of the Virgin Islands and Puerto Rico on the 14th as it became a major hurricane. A potent disturbance in the middle of the nation at mid-month spawned about a dozen twisters as it moved slowly eastward. Gonzalo took direct aim at Bermuda and passed across the island nation as a Category 3 storm on the 17th. This was the second hit in five days. In the central Pacific, hurricane Ana skirted south of the Hawaiian Islands bringing high waves and bands of flooding rain to the western part of the chain. Meanwhile, it turned very mild in the middle of the country with readings in the 80’s as far north as the Dakotas. A slow moving nor’easter provided much needed rain for southern New England from October 21-24. A soggy front started the rainy season in the Pacific Northwest during the last weekend of October as late summer warmth surged into the southern Plains. In the Caribbean, Hanna formed briefly near Honduras and was carried inland. As month ended, a tropical cyclone in the Arabian Sea was headed toward Pakistan and Vance formed in the eastern Pacific and wandered toward Baja. October 2014 was a mild month for the nation with only two diminutive cool areas, on in the western Great Lakes and the other in Florida. The warmth was centered over the northern Rockies, southwest Plains and New England. Rainfall was sparse from California to Minnesota and from New Mexico to the Carolina Coast. It was wet in the Pacific Northwest and from Kansas and Arkansas to the upper Great Lakes and central Appalachians. Much of New England turned moist too.

The following show the temperature and precipitation departures from normal across the nation during October 2014:
Temperatures Precipitation
November 2014  

An early taste of winter greeted the Deep South as the month began with 2 feet of snow in the Smokey Mountains and the earliest snow on record on the South Carolina Piedmont. Record minimums reached to south Florida and freezes were noted to the Gulf Coast. Heavy wet snow covered much of Maine as more than a foot fell in down-east sections. Caribou tallied its earliest 10”+ snow cover on record. Tropical moisture from dying hurricane Vance soaked the southern Plains. A disturbance on a cold front dropped more snow in northern New England on the 7th. However, it was the remnants of super-typhoon Nuri that turned into the most intense storm on record in the Bering Sea and this caused a cascade of frigid air into central North America. The bitter chill was preceded by record warmth in the Plains and South. Snow accompanied the change to wintry conditions with a couple of feet of snow in Michigan’s Upper Peninsula and a new November record for chill at -26F in Casper, WY only to break the record by a degree the next morning. Denver dropped to teens below zero and a winter storm invaded in Pacific Northwest with icy roads near the coast and heavy snow farther inland. Another surge of frigid air brought swatches of snowfall to the nation such that by November 17th, half of the contiguous states were snow-covered, an unprecedentedly early arrival of wintry weather. As the gelid air crossed the Great Lakes, a prodigious amount of snow fell in the Buffalo suburbs with upwards of 60 inches in just one day. Similar amounts fell around Watertown, NY. Then two days later, another bout of lake effect snow struck the same region. A fast moving flat disturbance on a stalled front along the Atlantic Seaboard caused widespread travel disruption on one of the busiest travel days. A swath of heavy wet snow fell from the southern Appalachians to the New England coast with more than a half of foot of snow snarling traffic from western Virginia to the suburbs of Boston. Power was knocked out for several hundred thousand in New England. Meanwhile, bitter chill dropped the mercury of a record -28F in central North Dakota on Black Friday and snow squalls raised the tally of November snowfall to a record 64” in northern Michigan. The month concluded with another surge of Arctic air invading the northern and western Plains as much milder air overtook the eastern states on brisk winds from the southwest. Overall, November 2014 will be remembered as one of the colder 11th months in recent years. The chilliest conditions were centered in the Plains and Mississippi Valley, but all of the nation east of the continental divide averaged below normal readings. It was mild from the Cascade to the Coast and in all of California and Arizona. Precipitation averaged below normal across much of the country. It was moist in the northern and eastern Rockies as well as around the Great Lakes, southwest Plains and much of the Southeast.

The following show the temperature and precipitation departures from normal across the nation during November 2014:
Temperatures Precipitation
December 2014 Weather Summary  

The final month of 2014 began with mild air occupying both California and the East Coast as chillier air was moving into the Midwest. It was not long before a large Pacific storm began to send record amounts of rain into the West Coast. In fact, San Francisco had more rain in the first three days of December than it had in all of 2013. Flooding was widespread in central and northern California as well as the mountains of the Southwest. Enough rain fell in Las Vegas that a dense fog settled over the region leading to flight cancellations. As the disturbance traversed the nation, it brought heavy rain along with some ice along its leading edge. Meanwhile in the western Pacific, a super-typhoon named Ruby raked across the Philippines causing a number of fatalities and considerable property damage. Back in the states, several disturbances merged near the New England coast to create a large nor’easter which dumped heavy snow from central New York to northern Maine. A few bands of heavy snow effected northern and central Pennsylvania. The storm stalled for 3 days over the region sending chilly air into the Southeast. A potent disturbance blasted into northern California on the 11th with hurricane force wind gusts on the coast and flooding rains in the valleys. As the West turned stormy, Pacific air flooded the nation east of the Rockies keeping minimum temperatures near or above freezing for several days. As polar air returned to the high Plains at mid-month, so did a swath of heavy wet snow. The period leading up to the Christmas holiday was generally tranquil and seasonably mild with an abundance of clouds from coast to coast. However, a potent disturbance in the Deep South triggered an outbreak of severe storms on the 23rd causing over a dozen twisters that resulted in 4 fatalities in Mississippi. Heavy rain soaked the Atlantic Seaboard on Christmas Eve as temperatures reached the 50’s as far north as New England. Christmas morning found about 20% of the nation snow-covered and only a handful of states had readings staying below freezing on Christmas Day. The axis of chilly weather then moved into the West where snow fell at low elevations in the interior mountain region and the last few days of the year saw an enormous high, centered over the high Plains controlling the weather from coast to coast. Frigid air covered the northern tier sending to mercury to -31F in Laramie and -19 in Denver as a potent disturbance in the Southwest triggered low elevation snow in the deserts of southern Nevada and Arizona as the year concluded. Two international disasters were affected by the weather as a fire on a Greek Ferry was caught in gales and rough seas delaying the evacuation of passengers and weather appeared to be a culprit in the loss of a Malaysian airliner en-route to Singapore. Overall, December 2014 was quite mild from coast to coast with only one or two spots averaging slightly below normal. The mildest conditions were across the northern third of the country with the interior Northwest being the warmest. Precipitation during December was generally above normal from the central Plains to the Pacific Coast and below normal from the southwest Plains to the Mississippi Valley, the Ohio Valley and mid-Atlantic region as well as southern Florida. The wettest area was California for a change and the driest region was Texas.

The following show the temperature and precipitation departures from normal across the nation during December 2014:
Temperatures Precipitation
January 2015 Weather Summary  

The following show the temperature and precipitation departures from normal across the nation during January 2015:
Temperatures Precipitation

© Weather World and Paul Knight, Drew Anderson, and Mark Magnotta.  All rights reserved @2014.