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%
1922 7.79% 7.15%
1923 12.76% 0.84%
1924 9.85% 0.00%
1925 0.00% 0.54%
1926 16.46% 24.61%
1927 48.23% 2.74%
1928 0.00% 0.00%
1929 0.36% 42.00%
1930 0.78% 5.40%
1931 45.96% 17.26%
1932 9.68% 25.29%
1933 8.32% 8.62%
1934 33.00% 0.00%
1935 0.41% 19.62%
1936 0.17% 14.26%
1937 5.09% 6.85%
1938 0.00% 22.85%
1939 16.04% 7.75%
1940 0.00% 12.70%
1941 1.31% 0.11%
1942 13.31% 0.21%
1943 0.77% 1.70%
1944 3.19% 2.53%
1945 7.47% 1.72%
1946 17.57% 7.85%
1947 0.45% 40.61%
1948 15.68% 12.15%
1949 54.76% 1.74%
1950 14.08% 20.21%
1951 0.00% 39.85%
1952 0.00% 24.52%
1953 29.81% 0.00%
1954 42.02% 1.98%
1955 0.00% 27.91%
1956 0.47% 9.05%
1957 0.93% 23.06%
1958 3.32% 0.00%
1959 1.36% 38.46%
1960 0.10% 0.00%