Friday, December 7, 2012

November 2012 Statewide Climate Summary

November 2012 Statewide Climate Summary

The western half of the U.S. (lower 48 states) had above normal to much above normal temperatures in November 2012.  In contrast the Eastern third of the U.S. had below to much below normal temperatures for November 2012.  The Nebraska statewide average temperature in November 201was the 93rd coldest or 24th warmest on record (118 years of data).

There are two maps included below to illustrate the November 2012 temperature departures from normal.  The first map is a state by state ranking (ranking relative to each specific state's climate record) and a shaded map illustrating the temperature departures form normal on a "climate division" basis.  The number of climate divisions  ranges from only 3 in Maine to as many as 10 in several states.Nebraska has climate divisions numbered from 1 to 9 but only has 8 climate division since a climate division number 4 is not shown (and we have no idea why there isn't a climate division number 4 for Nebraska!)

  • Climate Highlights — November from NCDC
  • The average temperature for the contiguous U.S. during November was 44.1°F, 2.1°F above the 20th century average, tying 2004 as the 20th warmest November on record.
  • November brought warmer-than-average conditions to the western half of the country. The largest temperature departures from average were centered near the Rockies where Arizona, Colorado, New Mexico, Utah, and Wyoming had November temperatures among their ten warmest.
  • The Eastern Seaboard, Ohio Valley, and Southeast were cooler than average during November. North Carolina tied its 10th coolest November on record, with a statewide-averaged temperature 3.5°F below average.
  • The November nationally-averaged precipitation total of 1.19 inches was 0.93 inch below the long-term average and the 8th driest November on record. A large area of the country experienced below-average precipitation in November. Drier-than-average conditions stretched from the Intermountain West, through the Plains, into the Midwest, and along the entire East Coast. Twenty-two states had monthly precipitation totals ranking among their ten driest.
  • According to the November 27th, 2012 U.S. Drought Monitor report, 62.7 percent of the contiguous U.S. was experiencing moderate-to-exceptional drought, larger than the 60.2 percent at the end of October. Drought conditions improved for parts of the Northern Rockies, which were wetter than average during November, while they worsened for parts of the Southwest, Southeast, and Mid-Atlantic.







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