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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February Very Warm: Very Cold:
1895 0.39% 53.24%
1896 4.33% 0.00%
1897 0.00% 2.18%
1898 10.44% 0.19%
1899 0.00% 64.27%
1900 0.46% 15.95%
1901 0.77% 19.69%
1902 2.33% 31.28%
1903 0.00% 41.61%
1904 11.72% 23.74%
1905 0.81% 58.50%
1906 5.57% 0.00%
1907 27.92% 6.50%
1908 0.00% 2.42%
1909 5.33% 0.00%
1910 0.00% 16.67%
1911 11.12% 14.38%
1912 0.00% 22.34%
1913 1.04% 25.23%
1914 0.00% 24.28%
1915 6.32% 0.00%
1916 2.84% 0.90%
1917 0.00% 15.93%
1918 4.21% 0.91%
1919 0.00% 8.53%
1920 0.32% 0.29%
1921 0.93% 0.00%
1922 9.92% 18.24%
1923 0.00% 21.69%
1924 18.90% 1.70%
1925 33.08% 0.00%
1926 26.19% 0.31%
1927 37.28% 0.00%
1928 0.00% 0.00%
1929 0.08% 65.02%
1930 54.74% 0.00%
1931 25.35% 0.00%
1932 42.52% 5.01%
1933 0.17% 37.47%
1934 18.41% 17.04%
1935 6.69% 0.00%
1936 0.00% 54.42%
1937 1.10% 6.36%
1938 26.62% 1.11%
1939 6.37% 43.78%
1940 0.00% 0.09%
1941 1.45% 3.87%
1942 0.00% 16.14%
1943 6.68% 0.00%
1944 8.37% 2.75%
1945 0.00% 0.00%
1946 3.51% 1.89%
1947 6.11% 27.87%
1948 0.00% 5.61%
1949 14.70% 26.67%
1950 8.43% 0.78%
1951 0.04% 0.00%
1952 4.35% 1.17%
1953 3.60% 0.00%
1954 71.95% 0.00%
1955 0.00% 16.67%
1956 4.30% 26.10%
1957 39.33% 0.00%
1958 13.01% 30.53%
1959 1.10% 2.94%
1960 2.04% 24.14%
1961 12.50% 0.00%
1962 19.29% 1.49%
1963 25.46% 24.87%
1964 1.63% 21.66%
1965 0.00% 2.71%
1966 0.00% 15.65%
1967 0.94% 5.16%
1968 13.37% 22.06%
1969 0.00% 3.67%
1970 6.72% 0.00%
1971 0.00% 0.00%
1972 0.00% 0.00%
1973 0.00% 2.77%
1974 0.66% 2.24%
1975 0.93% 2.67%
1976 56.89% 0.00%
1977 8.14% 0.00%
1978 0.00% 56.49%
1979 0.00% 44.52%
1980 3.89% 10.96%
1981 6.88% 0.00%
1982 1.10% 0.64%
1983 17.30% 0.00%
1984 26.74% 1.35%
1985 0.00% 9.77%
1986 17.90% 0.00%
1987 20.01% 0.00%
1988 4.76% 0.00%
1989 0.00% 47.22%
1990 23.00% 1.21%
1991 49.11% 0.00%
1992 51.99% 0.00%
1993 0.00% 14.64%
1994 0.45% 7.34%
1995 32.95% 0.00%
1996 13.50% 0.00%
1997 4.83% 0.00%
1998 33.13% 0.00%
1999 48.98% 0.00%
2000 52.47% 0.00%
2001 2.06% 0.45%
2002 16.12% 0.44%
2003 0.00% 0.23%
2004 0.00% 0.00%