ScienceDaily (Apr. 10, 2012) ? Record and near-record violation temperatures dominated a eastern two-thirds of a United States and contributed to a warmest Mar on record for a constant United States, a record that dates behind to 1895. More than 15,000 comfortable heat annals were damaged during a month.
The normal heat of 51.1°F was 8.6 degrees above a 20th century normal for Mar and 0.5°F warmer than a prior warmest Mar in 1910. Of a some-more than 1,400 months (117 years) that have upheld given a U.S. meridian record began, usually one month, Jan 2006, has seen a incomparable depart from a normal heat than Mar 2012.
Note: The Mar 2012 Monthly Climate Report for a United States has several pages of supplemental information and information (www.ncdc.noaa.gov/special-reports/march-2012-heat-wave/) per a singular early 2012 temperatures.
U.S. meridian highlights — March
- Every state in a republic gifted during slightest one record comfortable daily heat during March. According to rough data, there were 15,272 comfortable heat annals damaged (7,755 daytime records, 7,517 night records). Hundreds of locations opposite a nation pennyless their all-time Mar records. There were 21 instances of a night temperatures being as warm, or warmer, than a existent record daytime heat for a given date.
- A determined continue settlement led to 25 states easterly of a Rockies carrying their warmest Mar on record. An additional 15 states had monthly temperatures ranking among their 10 warmest. That same settlement brought cooler-than-average conditions to a West Coast states of Washington, Oregon, and California.
- Temperatures in Alaska during March, that are not enclosed in a constant U.S. normal value, ranked as a tenth coolest on record.
- The nationally-averaged flood sum was 2.73 inches, that is 0.33 inches above average. The Pacific Northwest and a Southern Plains were most wetter than normal during Mar while drier-than-average conditions prevailed in a interior West, Northeast, and Florida. Colorado had a driest Mar on record.
- According to a U.S. Drought Monitor, as of Apr 3rd, 36.8 percent of a constant U.S. was in drought, a diminution from 38.7 percent during a finish of Feb and an boost from 28.8 percent a year ago on Apr 5, 2011. Above-average flood opposite a Southern Plains softened long-term drought conditions Texas, Oklahoma, and Kansas.
- Warmer-than-average conditions opposite a eastern U.S. also combined an sourroundings auspicious for serious thunderstorms and tornadoes. According to NOAA’s Storm Prediction Center, there were 223 rough hurricane reports during March, a month that averages 80 tornadoes annually. The infancy of a tornadoes occurred during a Mar 2nd-3rd conflict opposite a Ohio Valley and Southeast, that caused 40 fatalities. Total waste from this eventuality are estimated to surpass $1.5 billion dollars, creation this a initial eventuality of 2012 to surpass one billion dollars in indemnification and losses.
- On Mar 9, a vast continue complement impacted a Hawaiian Islands, bringing impassioned rainfall and serious thunderstorms. A singular EF-0 hurricane strike a towns of Lanikai and Kailua on Oahu, causing teenager damage. A hailstone with a largest hole on record for a state, measuring 4¼ inches, fell on Oahu during this event.
- The initial 3 months of 2012 were also record comfortable for a constant United States with an normal heat of 42.0°F, 6.0°F above a long-term average.
- Twenty-five states, all easterly of a Rockies, had their warmest initial entertain on record, and an additional 16 states had first-quarter temperatures ranking among their 10 warmest.
- Numerous cities had a record comfortable January-March, including Chicago, Boston, and Washington, D.C. No state in a constant U.S. had below-average January-March temperatures.
- Alaska had a ninth coolest January-March period; temperatures were 5.2°F next average.
- The nationally-averaged flood sum for January-March was 0.29 inches next a long-term average. States opposite a Pacific Northwest and Southern Plains were wetter than average, while a Intermountain West, tools of a Ohio Valley, and a whole Eastern Seaboard were drier than average.
- NOAA’s U.S. Climate Extremes Index, an index that marks a top 10 percent and lowest 10 percent of extremes in temperature, precipitation, drought and pleasant cyclones, was 39 percent, scarcely twice a long-term normal and a top value on record for a January-March period. The accepted cause was a vast area experiencing extremes in comfortable daily limit and smallest temperatures.
Cold deteriorate (October-March) and 12-month duration (April 2011-May 2012)
- The cold season, that is tangible as Oct 2011 by Mar 2012 and an critical duration for inhabitant heating needs, was second warmest on record for a constant U.S. with a nationally-averaged heat 3.8°F above average. Only a cold deteriorate of 1999-2000 was warmer. Twenty-one states opposite a Midwest and Northeast, areas of a nation with high annual heating demands, were record comfortable for a six-month period.
- The prior 12-month duration (April-March), that includes a second hottest summer (June-August) and fourth warmest winter (December-February), was a warmest such duration for a constant United States. The 12-month using normal heat was 55.4°F, that is 2.6°F above a 20th century average.
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