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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July Very Wet: Very Dry:
1895 16.24% 11.56%
1896 23.62% 8.36%
1897 10.67% 4.52%
1898 7.61% 5.26%
1899 12.52% 6.33%
1900 13.22% 13.16%
1901 2.28% 21.15%
1902 22.27% 14.59%
1903 16.66% 14.70%
1904 9.46% 3.85%
1905 24.37% 9.93%
1906 19.67% 7.88%
1907 14.64% 6.44%
1908 9.16% 1.40%
1909 13.06% 7.17%
1910 6.47% 11.51%
1911 17.95% 10.95%
1912 18.96% 2.44%
1913 19.12% 9.48%
1914 13.02% 11.45%
1915 31.60% 4.05%
1916 21.13% 15.24%
1917 4.74% 19.63%
1918 5.62% 11.34%
1919 18.20% 15.32%
1920 2.90% 3.35%
1921 12.58% 10.07%
1922 9.72% 8.51%
1923 11.41% 4.71%
1924 4.73% 18.85%
1925 10.13% 8.07%
1926 8.14% 3.89%
1927 4.96% 1.59%
1928 12.34% 4.67%
1929 7.64% 16.66%
1930 7.13% 35.35%
1931 6.85% 15.04%
1932 8.83% 4.58%
1933 7.83% 13.07%
1934 1.23% 27.67%
1935 7.07% 11.13%
1936 14.56% 26.91%
1937 12.09% 6.77%
1938 18.75% 1.35%
1939 2.31% 12.09%
1940 5.97% 22.94%
1941 11.53% 2.57%
1942 4.16% 13.00%
1943 4.03% 9.96%
1944 5.19% 22.05%
1945 11.43% 6.49%
1946 10.06% 8.63%
1947 4.49% 29.27%
1948 15.07% 8.90%
1949 7.90% 3.61%
1950 25.65% 2.11%
1951 7.16% 6.97%
1952 8.07% 15.43%
1953 8.34% 15.64%
1954 1.82% 23.94%
1955 14.68% 6.23%
1956 5.74% 4.43%
1957 3.95% 12.46%
1958 29.82% 5.97%
1959 9.70% 15.24%
1960 11.01% 18.85%
1961 8.73% 1.58%
1962 16.79% 13.00%
1963 3.58% 17.34%
1964 5.07% 11.63%
1965 9.29% 7.37%
1966 3.40% 7.91%
1967 8.44% 11.65%
1968 8.96% 7.34%
1969 12.72% 1.00%
1970 5.01% 11.04%
1971 7.83% 5.96%
1972 10.67% 15.24%
1973 10.98% 9.14%
1974 6.84% 15.70%
1975 18.85% 10.98%
1976 12.78% 7.68%
1977 7.91% 7.72%
1978 14.32% 10.14%
1979 14.50% 5.94%
1980 3.48% 26.59%
1981 11.46% 4.33%
1982 12.30% 3.60%
1983 13.26% 30.70%
1984 19.56% 8.78%
1985 7.94% 5.44%
1986 11.45% 9.21%
1987 21.74% 12.01%
1988 6.90% 11.61%
1989 7.33% 9.59%
1990 13.97% 3.14%
1991 11.20% 6.61%
1992 27.10% 2.92%
1993 29.81% 30.19%
1994 11.10% 8.36%
1995 9.93% 10.88%
1996 14.01% 4.21%
1997 13.26% 8.20%
1998 14.94% 8.27%
1999 16.25% 12.12%
2000 2.25% 25.38%
2001 11.51% 6.97%
2002 6.43% 12.04%
2003 9.94% 25.59%
2004 8.55% 2.46%
2005 4.61% 13.51%
2006 9.54% 11.73%
2007 10.80% 5.16%
2008 8.84% 8.63%
2009 12.75% 4.94%
2010 20.12% 2.34%
2011 7.01% 10.95%
2012 5.24% 11.76%
2013 20.43% 5.27%
2014 7.02% 6.77%
2015 25.03% 2.84%
2016 11.62% 13.21%
2017 10.07% 12.90%