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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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%
1906 0.20% 4.03%
1907 1.25% 2.43%
1908 2.55% 0.00%
1909 44.10% 0.00%
1910 6.73% 20.45%
1911 0.00% 55.85%
1912 0.24% 1.28%
1913 40.94% 0.00%
1914 15.62% 0.98%
1915 12.24% 0.00%
1916 0.00% 20.70%
1917 33.07% 15.55%
1918 1.72% 10.50%
1919 1.89% 22.13%
1920 0.00% 7.64%
1921 24.97% 9.06%