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 Wet: Very Dry:
1895 13.65% 8.75%
1896 0.00% 26.38%
1897 3.45% 2.49%
1898 1.80% 12.18%
1899 0.00% 2.23%
1900 0.00% 18.81%
1901 14.00% 5.38%
1902 16.47% 1.45%
1903 0.48% 19.75%
1904 0.00% 3.63%
1905 9.61% 20.03%
1906 14.99% 0.36%
1907 4.10% 2.85%
1908 2.76% 16.68%
1909 21.72% 2.08%
1910 0.00% 7.18%