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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 Wet: | Very Dry: |
|---|---|---|
| 1895 | 5.14% | 7.76% |
| 1896 | 0.81% | 10.89% |
| 1897 | 2.44% | 12.74% |
| 1898 | 10.11% | 5.26% |
| 1899 | 5.60% | 19.51% |
| 1900 | 10.57% | 24.28% |
| 1901 | 17.73% | 11.20% |
| 1902 | 6.57% | 18.31% |
| 1903 | 10.97% | 5.47% |
| 1904 | 7.29% | 3.10% |
| 1905 | 2.65% | 10.85% |
| 1906 | 19.76% | 4.24% |
| 1907 | 2.68% | 5.87% |
| 1908 | 9.61% | 5.12% |
| 1909 | 9.57% | 12.91% |
| 1910 | 3.14% | 17.10% |
| 1911 | 9.27% | 14.42% |
| 1912 | 13.97% | 3.37% |
| 1913 | 0.00% | 13.30% |
| 1914 | 16.48% | 13.47% |
| 1915 | 27.19% | 13.78% |
| 1916 | 3.92% | 4.66% |
| 1917 | 5.29% | 11.55% |
| 1918 | 4.73% | 0.85% |
| 1919 | 1.29% | 8.60% |
| 1920 | 15.47% | 1.36% |
| 1921 | 9.49% | 10.70% |
| 1922 | 7.97% | 12.22% |
| 1923 | 8.34% | 6.21% |
| 1924 | 4.44% | 20.16% |
| 1925 | 1.70% | 14.19% |
| 1926 | 16.05% | 7.19% |
| 1927 | 17.49% | 14.53% |
| 1928 | 12.48% | 9.36% |
| 1929 | 3.77% | 21.87% |
| 1930 | 14.81% | 23.85% |
| 1931 | 9.92% | 6.72% |
| 1932 | 8.31% | 5.84% |
| 1933 | 15.82% | 7.60% |
| 1934 | 3.77% | 12.82% |
| 1935 | 5.60% | 5.34% |
| 1936 | 4.88% | 17.11% |
| 1937 | 6.42% | 11.74% |
| 1938 | 1.99% | 20.95% |
| 1939 | 6.62% | 5.26% |
| 1940 | 12.51% | 14.76% |
| 1941 | 15.39% | 4.90% |
| 1942 | 16.98% | 5.26% |
| 1943 | 3.57% | 23.57% |
| 1944 | 16.23% | 20.13% |
| 1945 | 11.73% | 2.92% |
| 1946 | 6.89% | 5.48% |
| 1947 | 7.99% | 12.35% |
| 1948 | 2.65% | 8.97% |
| 1949 | 6.89% | 8.97% |
