U.S. winters have cooled 2.26F in the last 20 years – All 9 climate regions have seen cooling


By: - Climate DepotMarch 17, 2014 11:35 AM with 0 comments

By Joseph D’Aleo, CCM (Certified Consulting Meteorologist) 

NCDC Winter data – CONUS and all 9 climate regions down the last 20 years (CONUS – Contiguous United States)

The winter was a cold one. NCDC (National Climatic Data Center) updated their climate divisions and released the February and winter data Thursday.

This is what the NCEP (National Centers for Environmental Prediction) CFSv2 based reanalysis told us for the winter.

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It was a top ten coldest winter in the north central, coldest ever in spots.

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Here is the CONUS (continental U.S.) trend for the last 20 years, down 2.26F (1.13F per decade). This is the trend from NCDC for the period 1995-2014. The base period is the conventional last 3 complete decades -1981-2010.

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They have 9 climate regions as shown here.

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They are all in a downtrend. Not all obviously statistically significant but no region had warming.

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