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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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| August | Very Warm: | Very Cold: |
|---|---|---|
| 1895 | 3.03% | 1.33% |
| 1896 | 14.14% | 2.85% |
| 1897 | 6.15% | 12.03% |
| 1898 | 18.60% | 1.21% |
| 1899 | 20.92% | 23.54% |
| 1900 | 31.75% | 13.85% |
| 1901 | 23.71% | 4.42% |
| 1902 | 12.67% | 11.21% |
| 1903 | 6.01% | 18.94% |
| 1904 | 3.08% | 28.58% |
| 1905 | 5.22% | 2.24% |
| 1906 | 11.77% | 22.68% |
| 1907 | 1.34% | 28.13% |
| 1908 | 0.00% | 19.18% |
| 1909 | 4.35% | 1.88% |
| 1910 | 6.40% | 21.72% |
| 1911 | 2.71% | 25.90% |
| 1912 | 0.00% | 42.80% |
| 1913 | 18.93% | 2.71% |
| 1914 | 0.00% | 4.99% |
| 1915 | 14.20% | 45.32% |
| 1916 | 2.67% | 20.22% |
| 1917 | 2.74% | 27.41% |
| 1918 | 21.70% | 17.58% |
| 1919 | 1.08% | 2.85% |
| 1920 | 0.59% | 33.40% |
| 1921 | 3.57% | 9.80% |
| 1922 | 0.74% | 7.30% |
| 1923 | 0.00% | 26.07% |
| 1924 | 15.14% | 5.18% |
| 1925 | 1.81% | 18.59% |
| 1926 | 6.12% | 0.00% |
| 1927 | 3.48% | 55.05% |
| 1928 | 5.55% | 11.36% |
| 1929 | 12.14% | 9.99% |
| 1930 | 4.21% | 2.54% |
| 1931 | 7.12% | 9.80% |
| 1932 | 1.62% | 4.29% |
| 1933 | 1.01% | 2.72% |
| 1934 | 29.26% | 4.76% |
| 1935 | 4.66% | 0.00% |
| 1936 | 33.59% | 0.00% |
| 1937 | 50.68% | 1.59% |
| 1938 | 29.64% | 0.62% |
| 1939 | 6.52% | 3.05% |
| 1940 | 3.77% | 6.19% |
| 1941 | 5.24% | 12.07% |
| 1942 | 1.74% | 0.46% |
| 1943 | 28.71% | 2.71% |
| 1944 | 4.05% | 0.93% |
| 1945 | 4.25% | 0.73% |
| 1946 | 0.82% | 20.36% |
| 1947 | 37.75% | 4.39% |
| 1948 | 3.64% | 2.98% |
| 1949 | 3.43% | 6.49% |
| 1950 | 0.28% | 42.91% |
| 1951 | 17.84% | 9.70% |
| 1952 | 16.63% | 0.00% |
| 1953 | 0.00% | 3.00% |
| 1954 | 22.07% | 14.64% |
| 1955 | 31.70% | 1.38% |
| 1956 | 3.27% | 11.34% |
| 1957 | 0.02% | 9.78% |
| 1958 | 21.97% | 0.00% |
| 1959 | 22.02% | 1.33% |
| 1960 | 0.72% | 3.77% |
| 1961 | 19.97% | 11.13% |
| 1962 | 7.50% | 0.03% |
| 1963 | 0.36% | 9.45% |
| 1964 | 0.83% | 27.14% |
| 1965 | 0.35% | 10.79% |
| 1966 | 3.67% | 25.63% |
| 1967 | 14.49% | 40.22% |
| 1968 | 2.27% | 34.61% |
| 1969 | 27.15% | 8.24% |
| 1970 | 12.72% | 0.00% |
| 1971 | 21.54% | 19.04% |
| 1972 | 1.14% | 6.69% |
| 1973 | 7.39% | 7.25% |
| 1974 | 0.00% | 33.66% |
| 1975 | 2.00% | 17.71% |
