Climate: November temps above average across U.S.

Year-to-date also on track for above-average temps

November was warmer and drier than average in much of Colorado.

By Summit Voice

SUMMIT COUNTY — The average November temperature across the country was about 1.8 degrees above the 1901-2000 average, with the warmest reading across the eastern half of the country, according to the latest monthly updade from the National Climatic Data Center. Thirteen states in the region recorded top-ten November temperatures.

Readings were similar for the entire September to November autumn season, with below average readings across the West and Northwest, where six states reported below-average readings for the period.

Some highlights from the monthly report include:

Year-to-date:

For the first 11 months of 2011, the U.S. was warmer than average. Much of the warmth was anchored across the Southern Plains and along the Eastern Seaboard. Delaware and Texas were record warm for the January-November period with statewide temperatures 3.2 degrees F and 2.5 degrees F above their long-term averages, respectively. Only Oregon, South Dakota, and Washington were cooler than average during the period.

In the West, several strong, deep troughs passed through the West this month, bringing cold Arctic air and slightly below to well below normal temperatures to areas west of the Rockies. The associated storm systems, however, generally resulted in precipitation values that were below normal. In part, the trajectories of these storms leave many of them with insufficient moisture to produce typical November precipitation.

NOAA National Climatic Data Center, State of the Climate: National Overview for November 2011, published online December 2011, retrieved on December 9, 2011 from http://www.ncdc.noaa.gov/sotc/national/.

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2 Responses

  1. Strange…Why doesn’t the author mention the cause? La Nina…

    http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.html

  2. Oops – I mean El Nino…one of those ocean thingys…

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