U.S. Percentage Areas (Very Warm/Cold, Very Wet/Dry)

The percentage areas of the contiguous United States are computed based on the climate division data set. Those climate divisions having the monthly average temperature/total precipitation in the top ten percent (> 90th percentile) of their historical distribution are very warm/wet and those in the bottom ten percent (< 10th percentile) are very cold/dry.

Move mouse towards an axis until highlighted. Left-click mouse to pan. Shift key + left-click to zoom.

April Very Warm: Very Cold:
1895 17.81% 1.90%
1896 35.28% 9.83%
1897 8.75% 5.95%
1898 12.18% 20.55%
1899 1.98% 3.08%