At Watts Up With That
, data from the National Climatic Data Center
are reviewed. The results are quite startling. Every region of the continental United States has shown a cooling trend during the winter from 2001 to the present, and five of the nine regions have also had a cooling trend during the summer. With respect to annual mean temperature, only one of nine regions–the Northeast–has gotten warmer; the other eight have gotten cooler.
This chart shows the overall trend for the period 2001 to 2010: