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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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| June | Very Wet: | Very Dry: |
|---|---|---|
| 1895 | 11.04% | 15.16% |
| 1896 | 1.27% | 9.34% |
| 1897 | 1.06% | 4.47% |
| 1898 | 3.38% | 3.80% |
| 1899 | 9.69% | 4.00% |
| 1900 | 11.57% | 19.34% |
| 1901 | 4.80% | 16.21% |
| 1902 | 8.62% | 16.68% |
| 1903 | 16.72% | 10.25% |
| 1904 | 10.87% | 9.93% |
| 1905 | 6.23% | 9.50% |
| 1906 | 7.78% | 3.87% |
| 1907 | 10.23% | 3.46% |
| 1908 | 9.06% | 10.76% |
| 1909 | 6.03% | 4.02% |
| 1910 | 8.09% | 24.39% |
| 1911 | 2.55% | 17.22% |
| 1912 | 5.10% | 14.43% |
| 1913 | 15.14% | 8.00% |
| 1914 | 20.06% | 8.09% |
| 1915 | 10.89% | 7.58% |
| 1916 | 8.34% | 12.32% |
| 1917 | 3.37% | 25.99% |
| 1918 | 6.44% | 17.28% |
| 1919 | 5.59% | 24.04% |
| 1920 | 4.32% | 1.02% |
| 1921 | 15.98% | 8.38% |
| 1922 | 4.94% | 9.96% |
| 1923 | 8.26% | 2.51% |
| 1924 | 4.68% | 18.83% |
| 1925 | 18.39% | 4.58% |
| 1926 | 0.00% | 5.30% |
| 1927 | 10.16% | 1.65% |
| 1928 | 28.34% | 4.44% |
| 1929 | 3.98% | 10.01% |
| 1930 | 1.20% | 15.76% |
