Drought persists, causing water resource issues for central U.S.; 2012 virtually certain to become warmest year on record for the nation
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. The autumn contiguous U.S. temperature of 54.7°F was the 21st warmest autumn, 1.1°F above 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. The autumn precipitation total for the contiguous U.S. was 5.71 inches, 1.0 inch below average.
- 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.
- 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 27 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 observed at the end of October. Drought conditions improved for parts of the Northern Rockies, which were wetter-than-average during November, while conditions worsened for parts of the Southwest and Mid-Atlantic.