Thursday, December 8, 2016

U.S. had its warmest autumn and 2nd warmest November on record

U.S. had its warmest autumn and 2nd warmest November on record
https://www.ncdc.noaa.gov/sotc/summary-info/national/201611



The contiguous U.S. average November temperature was 48.0°F, which was 6.3°F above the 20th century average. This was the second warmest November in the 122-year period of record, behind November 1999 (48.1°F). The contiguous U.S. average temperature for September-November was 57.6°F, 4.1°F above the 20th century average, the warmest autumn period on record for the second consecutive year. The previous record from 2015 was 56.8°F.

November was largely dry for the contiguous U.S., with a precipitation total of 1.73 inches, 0.50 inch below the 20th century average. This was the 25th driest November of the 122-year record. Precipitation during autumn was near the middle of the record nationally, with wet extremes in the Northwest and dry extremes in the Central Rockies, Gulf Coast region and interior Southeast.

The year-to-date (January-November) contiguous U.S. average temperature was 56.9°F, 3.1°F above average, and the second warmest value on record, following 2012 at 57.0°F. The January-through-November precipitation, totaled across the contiguous U.S., was 28.96 inches, 1.37 inches above normal.

This analysis of U.S. temperature and precipitation is based on data back to January 1895, resulting in 122 years of data.

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