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| July |
|---|
| Very Warm: |
| Very Cold: |
| 1895 | 1896 | 1897 | 1898 | 1899 | 1900 | 1901 | 1902 | 1903 | 1904 | 1905 | 1906 | 1907 | 1908 | 1909 | 1910 | 1911 | 1912 | 1913 | 1914 | 1915 | 1916 | 1917 | 1918 | 1919 | 1920 | 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 | 1931 | 1932 | 1933 | 1934 | 1935 | 1936 | 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.00% | 14.41% | 8.24% | 5.83% | 7.93% | 7.61% | 57.47% | 4.52% | 2.55% | 0.00% | 4.77% | 13.53% | 0.79% | 11.39% | 3.01% | 6.29% | 1.73% | 1.65% | 3.98% | 2.44% | 0.00% | 19.29% | 8.14% | 3.01% | 5.89% | 0.86% | 20.29% | 1.28% | 0.00% | 0.00% | 12.52% | 5.79% | 0.00% | 0.73% | 0.00% | 17.23% | 35.33% | 11.61% | 18.80% | 46.60% | 25.89% | 46.67% | 3.22% | 3.62% | 4.79% | 5.01% | 4.84% | 8.10% | 2.57% | 0.90% | 1.67% | 0.10% | 4.58% | 2.08% | 13.51% | 0.22% | 10.72% | 17.26% | 6.78% | 40.19% | 26.91% | 2.88% | 6.98% | 6.43% | 11.32% | 13.29% | 3.80% | 2.81% | 7.50% | 9.11% | 0.00% | 19.19% | 0.54% | 2.18% | 10.71% | 1.14% | 2.30% | 0.58% | 0.48% | 6.13% | 7.29% | 0.94% | 3.48% | 6.84% | 1.69% | 37.52% | 8.67% | 0.51% | 9.94% | 3.72% | 15.78% | 14.86% | 6.28% | 21.85% | 13.71% | 5.74% | 2.80% | 3.27% | 15.80% | 16.32% | 5.43% | 19.63% | 1.16% | 35.88% | 15.38% | 12.92% | 17.31% | 39.03% | 36.79% | 6.63% | 27.52% | 47.78% | 30.46% | 8.43% | 17.95% | 28.58% | 48.80% | 60.42% |
| 33.37% | 1.45% | 19.42% | 0.00% | 3.13% | 3.08% | 5.68% | 29.82% | 27.89% | 45.53% | 38.25% | 35.29% | 20.60% | 19.74% | 19.44% | 0.99% | 34.47% | 31.38% | 27.50% | 14.34% | 51.06% | 22.53% | 0.00% | 31.46% | 11.55% | 17.90% | 7.92% | 18.89% | 10.04% | 40.64% | 6.21% | 18.16% | 14.45% | 4.85% | 2.53% | 4.45% | 0.73% | 10.72% | 1.20% | 0.10% | 4.86% | 2.03% | 0.00% | 10.45% | 0.52% | 2.36% | 11.28% | 2.84% | 0.22% | 14.65% | 11.42% | 2.07% | 23.99% | 8.77% | 0.23% | 59.71% | 4.28% | 4.61% | 0.17% | 3.77% | 17.30% | 15.71% | 2.52% | 25.38% | 8.14% | 8.45% | 12.64% | 39.07% | 18.30% | 4.21% | 19.32% | 3.56% | 34.68% | 12.88% | 1.43% | 1.98% | 29.01% | 32.90% | 4.82% | 3.71% | 16.11% | 21.86% | 0.00% | 2.53% | 7.08% | 0.00% | 0.88% | 6.16% | 14.58% | 14.68% | 0.70% | 23.34% | 16.79% | 0.73% | 6.47% | 9.88% | 4.49% | 44.11% | 33.62% | 16.63% | 10.64% | 18.26% | 7.33% | 0.00% | 2.80% | 14.39% | 7.14% | 2.72% | 1.63% | 20.20% | 0.00% | 0.00% | 18.57% | 2.40% | 39.39% | 1.17% | 1.93% | 0.00% |
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 in the top ten percent (> 90th percentile) of their historical distribution are very warm and those in the bottom ten percent (< 10th percentile) are very cold.
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http://www.ncdc.noaa.gov/temp-and-precip/uspa/index.php