U.S. Percentage Areas (Very Warm/Cold, Very Wet/Dry)

Contiguous United States percentage area products are derived from standardized temperature and precipitation values, which are based on the U.S. Climate Divisional Dataset. Climate divisions with a standardized anomaly in the top ten percent (> 90th percentile) of their historical distribution are considered "very warm/wet" and those in the bottom ten percent (< 10th percentile) are classified as "very cold/dry". For more information please contact NCEI.Monitoring.info@noaa.gov.

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August Very Warm: Very Cold:
1895 1.90% 2.50%
1896 9.38% 2.51%
1897 6.32% 16.46%
1898 12.78% 1.34%
1899 16.62% 27.59%
1900 31.20% 24.16%
1901 8.34% 1.37%
1902 8.14% 16.74%
1903 5.00% 18.82%
1904 0.00% 21.74%
1905 3.33% 3.73%
1906 8.00% 14.63%
1907 0.20% 28.71%
1908 0.00% 23.23%
1909 10.08% 3.96%
1910 4.45% 23.52%
1911 3.56% 25.02%
1912 1.88% 44.38%
1913 14.70% 2.29%
1914 0.10% 6.37%
1915 10.03% 47.51%
1916 0.68% 16.64%
1917 0.00% 21.89%
1918 20.53% 17.21%
1919 2.33% 2.86%
1920 0.36% 30.36%
1921 1.68% 6.79%
1922 6.71% 8.42%
1923 0.72% 24.80%
1924 14.97% 7.04%
1925 0.51% 16.11%
1926 4.26% 0.00%
1927 1.57% 53.22%
1928 3.63% 11.23%
1929 13.73% 9.90%
1930 3.10% 2.52%
1931 4.34% 8.93%
1932 0.00% 0.00%
1933 0.00% 0.55%
1934 30.35% 6.44%
1935 1.77% 0.00%
1936 33.69% 0.10%
1937 48.00% 1.02%
1938 28.54% 0.54%
1939 5.92% 2.93%
1940 4.10% 4.69%
1941 3.62% 9.92%
1942 1.33% 0.00%
1943 28.43% 1.96%
1944 3.87% 0.00%
1945 2.11% 0.25%
1946 0.00% 20.72%
1947 37.63% 2.48%
1948 0.00% 4.07%
1949 1.22% 3.44%
1950 0.00% 45.11%
1951 17.41% 10.34%
1952 14.42% 0.00%
1953 0.00% 2.62%
1954 22.16% 17.58%
1955 26.00% 1.88%
1956 3.04% 13.25%
1957 0.00% 9.56%
1958 26.62% 0.00%
1959 19.88% 1.37%
1960 2.24% 2.60%
1961 19.52% 10.76%
1962 6.46% 0.06%
1963 0.00% 10.56%
1964 0.10% 22.14%
1965 0.00% 9.54%
1966 0.00% 24.38%
1967 17.29% 41.93%
1968 1.92% 33.80%
1969 26.78% 7.26%
1970 12.83% 0.00%
1971 21.43% 17.15%
1972 0.00% 6.77%
1973 7.74% 6.53%
1974 0.00% 31.92%
1975 2.00% 19.55%
1976 1.66% 33.42%
1977 9.70% 17.15%
1978 1.43% 3.12%
1979 0.00% 12.62%
1980 27.38% 11.68%
1981 13.37% 5.44%
1982 3.47% 10.44%
1983 56.17% 1.83%
1984 10.51% 1.76%
1985 0.00% 16.40%
1986 16.45% 15.15%
1987 11.18% 10.17%
1988 18.11% 0.00%
1989 0.36% 2.76%
1990 3.30% 5.94%
1991 12.29% 2.14%
1992 5.82% 57.25%
1993 3.33% 14.05%
1994 22.91% 12.07%
1995 47.86% 1.57%
1996 12.67% 5.09%
1997 5.17% 4.65%
1998 32.61% 0.00%
1999 15.29% 0.00%
2000 37.71% 0.00%
2001 31.51% 0.00%
2002 16.11% 2.09%
2003 40.95% 0.00%
2004 4.69% 46.54%
2005 21.76% 0.00%
2006 22.36% 0.00%
2007 47.57% 0.00%
2008 10.35% 0.10%
2009 9.61% 4.68%
2010 36.51% 0.00%
2011 45.16% 0.00%
2012 38.03% 0.00%
2013 11.92% 0.45%
2014 9.10% 1.75%
2015 20.61% 0.00%
2016 28.06% 0.00%
2017 19.84% 17.30%