This map shows when the coldest day of the year is the U.S.

On average, the coldest day of the year in many areas of Southern California is in December. But Southern Californians know better than to complain about our climate, so today we put our mild winter weather in perspective.
Coloring by cold
This is a National Oceanic and Atmospheric Administration map depicting the coldest day of the year average for the United States. The map is derived from the 1981-2010 U.S. Climate Normals. Southern California is experiencing its coldest time of the year, on