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.

November Very Warm: Very Cold:
1895 0.00% 8.05%
1896 13.47% 41.93%
1897 6.05% 4.28%
1898 0.00% 33.05%
1899 38.54% 0.00%
1900 11.51% 2.87%
1901 29.52% 22.61%
1902 38.58% 0.00%
1903 10.28% 18.62%
1904 25.58% 5.86%
1905 0.00% 3.72%