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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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| March | Very Warm: | Very Cold: |
|---|---|---|
| 1895 | 5.91% | 6.45% |
| 1896 | 4.40% | 14.64% |
| 1897 | 9.89% | 30.17% |
| 1898 | 13.25% | 13.32% |
| 1899 | 3.09% | 25.24% |
| 1900 | 25.98% | 9.18% |
| 1901 | 2.53% | 1.20% |
| 1902 | 7.44% | 4.67% |
| 1903 | 21.91% | 0.00% |
| 1904 | 14.20% | 6.15% |
| 1905 | 37.85% | 0.00% |
| 1906 | 0.44% | 47.76% |
| 1907 | 50.07% | 0.71% |
| 1908 | 30.09% | 0.00% |
| 1909 | 0.10% | 0.16% |
| 1910 | 92.08% | 0.00% |
| 1911 | 24.43% | 0.67% |
| 1912 | 0.00% | 46.59% |
| 1913 | 3.14% | 17.77% |
| 1914 | 9.05% | 7.10% |
| 1915 | 10.29% | 49.59% |
| 1916 | 20.82% | 9.66% |
| 1917 | 0.46% | 35.35% |
| 1918 | 45.90% | 0.00% |
| 1919 | 0.00% | 1.08% |
| 1920 | 0.00% | 0.00% |
| 1921 | 63.68% | 0.00% |
| 1922 | 0.00% | 9.75% |
| 1923 | 0.08% | 25.11% |
| 1924 | 0.00% | 34.52% |
| 1925 | 10.94% | 0.00% |
| 1926 | 12.55% | 21.95% |
| 1927 | 1.86% | 0.00% |
| 1928 | 7.63% | 0.15% |
| 1929 | 12.86% | 0.00% |
| 1930 | 0.00% | 0.48% |
| 1931 | 1.40% | 19.34% |
| 1932 | 0.00% | 30.94% |
| 1933 | 0.88% | 0.00% |
| 1934 | 31.81% | 0.95% |
| 1935 | 38.48% | 6.11% |
| 1936 | 10.17% | 0.06% |
| 1937 | 0.00% | 8.52% |
| 1938 | 48.51% | 4.36% |
| 1939 | 0.00% | 1.80% |
| 1940 | 8.57% | 6.73% |
| 1941 | 7.08% | 28.08% |
| 1942 | 2.79% | 4.75% |
| 1943 | 0.77% | 17.18% |
| 1944 | 0.00% | 10.97% |
| 1945 | 51.99% | 6.07% |
| 1946 | 52.59% | 0.00% |
| 1947 | 3.29% | 32.57% |
| 1948 | 1.54% | 31.45% |
| 1949 | 0.00% | 0.47% |
| 1950 | 0.00% | 7.91% |
| 1951 | 0.00% | 21.19% |
| 1952 | 0.08% | 33.87% |
| 1953 | 12.69% | 0.00% |
| 1954 | 0.00% | 4.08% |
| 1955 | 1.35% | 16.04% |
| 1956 | 0.00% | 3.83% |
| 1957 | 0.00% | 0.00% |
| 1958 | 1.19% | 35.25% |
| 1959 | 3.34% | 0.00% |
| 1960 | 2.58% | 54.77% |
| 1961 | 4.98% | 0.00% |
| 1962 | 0.00% | 19.80% |
| 1963 | 7.11% | 0.00% |
| 1964 | 0.00% | 19.00% |
| 1965 | 0.00% | 56.13% |
| 1966 | 0.00% | 0.00% |
| 1967 | 24.59% | 2.42% |
| 1968 | 22.45% | 2.65% |
