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%
1943 0.94% 12.11%
1944 15.99% 0.68%
1945 7.98% 14.60%
1946 19.97% 2.77%
1947 14.98% 0.00%
1948 19.83% 8.66%
1949 0.00% 41.99%
1950 9.32% 18.07%
1951 4.63% 2.28%
1952 6.58% 7.96%
1953 2.49% 15.30%
1954 0.76% 20.42%
1955 2.35% 14.28%
1956 4.83% 32.81%
1957 24.31% 0.81%
1958 8.13% 1.84%
1959 5.17% 18.07%
1960 2.98% 12.85%
1961 8.93% 3.57%
1962 3.41% 15.18%
1963 7.41% 5.23%
1964 6.27% 2.31%
1965 10.74% 16.95%
1966 3.96% 14.77%