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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 Warm: | Very Cold: |
|---|---|---|
| 1895 | 0.00% | 33.37% |
| 1896 | 14.41% | 1.45% |
| 1897 | 8.24% | 19.42% |
| 1898 | 5.83% | 0.00% |
| 1899 | 7.93% | 3.13% |
| 1900 | 7.61% | 3.08% |
| 1901 | 57.47% | 5.68% |
| 1902 | 4.52% | 29.82% |
| 1903 | 2.55% | 27.89% |
| 1904 | 0.00% | 45.53% |
| 1905 | 4.77% | 38.25% |
| 1906 | 13.53% | 35.29% |
| 1907 | 0.79% | 20.60% |
| 1908 | 11.39% | 19.74% |
| 1909 | 3.01% | 19.44% |
| 1910 | 6.29% | 0.99% |
| 1911 | 1.73% | 34.47% |
| 1912 | 1.65% | 31.38% |
| 1913 | 3.98% | 27.50% |
| 1914 | 2.44% | 14.34% |
| 1915 | 0.00% | 51.06% |
| 1916 | 19.29% | 22.53% |
| 1917 | 8.14% | 0.00% |
| 1918 | 3.01% | 31.46% |
| 1919 | 5.89% | 11.55% |
| 1920 | 0.86% | 17.90% |
| 1921 | 20.29% | 7.92% |
| 1922 | 1.28% | 18.89% |
| 1923 | 0.00% | 10.04% |
| 1924 | 0.00% | 40.64% |
| 1925 | 12.52% | 6.21% |
| 1926 | 5.79% | 18.16% |
| 1927 | 0.00% | 14.45% |
| 1928 | 0.73% | 4.85% |
| 1929 | 0.00% | 2.53% |
| 1930 | 17.23% | 4.45% |
| 1931 | 35.33% | 0.73% |
| 1932 | 11.61% | 10.72% |
| 1933 | 18.80% | 1.20% |
| 1934 | 46.60% | 0.10% |
| 1935 | 25.89% | 4.86% |
| 1936 | 46.67% | 2.03% |
| 1937 | 3.22% | 0.00% |
| 1938 | 3.62% | 10.45% |
| 1939 | 4.79% | 0.52% |
