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 Wet: Very Dry:
1895 7.33% 2.25%
1896 18.40% 1.54%
1897 12.58% 17.10%
1898 0.76% 0.26%
1899 2.17% 11.97%
1900 8.15% 4.61%
1901 0.00% 15.25%
1902 14.24% 8.01%
1903 3.91% 31.53%
1904 0.00% 54.42%
1905 17.84% 8.83%
1906 5.63% 4.67%
1907 7.99% 12.17%
1908 1.63% 16.95%
1909 34.00% 14.00%
1910 7.13% 21.73%
1911 2.27% 8.63%
1912 0.00% 17.39%
1913 8.21% 7.41%
1914 3.21% 36.02%
1915 0.74% 9.49%
1916 0.00% 12.93%
1917 0.00% 39.70%
1918 7.60% 1.37%
1919 17.33% 1.86%
1920 3.38% 7.18%
1921 8.65% 13.55%
1922 17.37% 17.28%
1923 1.41% 5.89%
1924 0.00% 19.60%
1925 0.50% 3.38%
1926 13.17% 3.00%
1927 14.44% 9.61%
1928 10.35% 9.48%
1929 5.29% 20.44%
1930 7.98% 5.14%
1931 18.52% 11.31%
1932 5.23% 24.65%
1933 0.00% 28.54%
1934 14.90% 1.58%
1935 2.35% 2.51%
1936 0.25% 29.96%
1937 1.72% 11.50%
1938 1.95% 6.76%
1939 1.20% 52.94%
1940 16.76% 1.54%
1941 1.00% 4.99%
1942 11.40% 13.71%