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.

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December Very Warm: Very Cold:
1895 0.31% 8.79%
1896 30.47% 0.00%
1897 0.00% 7.49%
1898 0.00% 35.33%
1899 1.93% 2.11%
1900 14.83% 0.00%
1901 0.00% 3.92%
1902 0.00% 5.11%