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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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| July | Very Wet: | Very Dry: |
|---|---|---|
| 1895 | 18.08% | 9.99% |
| 1896 | 17.16% | 10.00% |
| 1897 | 8.15% | 6.26% |
| 1898 | 9.66% | 10.50% |
| 1899 | 13.17% | 13.21% |
| 1900 | 14.45% | 15.81% |
| 1901 | 2.91% | 15.91% |
| 1902 | 22.35% | 19.37% |
| 1903 | 15.61% | 10.51% |
| 1904 | 1.86% | 0.00% |
| 1905 | 16.63% | 9.38% |
| 1906 | 18.66% | 9.84% |
| 1907 | 7.04% | 6.89% |
| 1908 | 8.52% | 2.71% |
| 1909 | 12.23% | 5.58% |
| 1910 | 4.52% | 14.99% |
| 1911 | 16.25% | 12.57% |
| 1912 | 18.79% | 6.79% |
| 1913 | 19.26% | 7.82% |
| 1914 | 13.17% | 12.01% |
| 1915 | 31.49% | 1.57% |
| 1916 | 25.46% | 11.66% |
| 1917 | 5.09% | 16.85% |
| 1918 | 3.27% | 9.89% |
| 1919 | 18.57% | 13.59% |
| 1920 | 0.00% | 1.00% |
| 1921 | 13.59% | 9.77% |
| 1922 | 3.15% | 7.06% |
| 1923 | 13.89% | 4.88% |
| 1924 | 2.81% | 16.37% |
| 1925 | 8.94% | 7.38% |
| 1926 | 2.70% | 4.62% |
| 1927 | 4.99% | 4.78% |
| 1928 | 8.27% | 4.93% |
| 1929 | 9.91% | 13.81% |
| 1930 | 10.18% | 39.33% |
| 1931 | 7.75% | 13.63% |
| 1932 | 7.36% | 8.19% |
