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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October Very Wet: Very Dry:
1895 0.26% 31.88%
1896 10.17% 4.26%
1897 11.47% 12.57%
1898 14.88% 10.19%
1899 8.90% 0.61%
1900 11.25% 0.60%
1901 1.15% 7.66%
1902 1.91% 11.03%
1903 2.17% 9.93%
1904 7.75% 17.55%
1905 6.28% 12.45%
1906 6.88% 14.26%
1907 12.67% 11.06%
1908 12.65% 13.38%
1909 0.00% 13.01%
1910 4.28% 3.75%
1911 13.80% 2.87%
1912 8.55% 0.82%
1913 7.83% 7.81%
1914 11.72% 1.79%
1915 4.55% 24.62%
1916 13.90% 2.15%
1917 6.71% 42.02%
1918 10.63% 1.67%
1919 28.23% 1.00%
1920 6.66% 6.42%
1921 1.54% 20.98%
1922 2.08% 7.01%
1923 16.77% 0.55%
1924 9.97% 30.58%
1925 22.66% 1.85%
1926 6.74% 5.63%
1927 9.68% 2.96%
1928 8.06% 4.33%
1929 12.63% 9.86%
1930 13.86% 3.32%
1931 0.95% 3.86%
1932 14.55% 3.67%
1933 1.58% 12.70%
1934 3.37% 22.24%
1935 0.12% 14.60%
1936 7.97% 10.44%
1937 11.95% 5.38%
1938 5.64% 30.25%
1939 0.02% 6.98%
1940 3.29% 7.10%
1941 43.52% 0.96%
1942 9.23% 2.48%
1943 4.20% 5.10%
1944 0.98% 18.83%
1945 6.90% 8.50%
1946 26.19% 1.39%
1947 10.79% 6.00%
1948 0.50% 6.68%
1949 15.53% 2.60%
1950 8.98% 18.65%
1951 10.52% 1.21%
1952 0.84% 78.42%
1953 1.91% 19.68%
1954 9.22% 5.10%
1955 6.29% 12.90%
1956 8.23% 7.95%
1957 19.75% 0.58%
1958 1.61% 17.32%
1959 28.76% 5.80%
1960 10.31% 3.01%
1961 0.67% 5.30%
1962 6.59% 1.77%
1963 1.84% 32.72%
1964 6.38% 37.59%
1965 1.46% 25.61%
1966 0.66% 9.48%
1967 8.86% 10.39%
1968 5.57% 1.42%
1969 17.42% 1.49%
1970 13.94% 3.00%
1971 19.41% 0.88%
1972 18.35% 1.54%
1973 5.72% 5.59%
1974 16.05% 11.45%
1975 14.89% 14.31%
1976 12.21% 6.63%
1977 8.89% 5.61%
1978 0.85% 28.95%
1979 5.98% 4.07%
1980 3.33% 4.51%
1981 17.07% 0.45%
1982 14.34% 6.96%
1983 14.00% 0.13%
1984 35.22% 1.76%
1985 16.42% 0.02%
1986 16.28% 3.74%
1987 4.87% 27.25%
1988 0.71% 32.03%
1989 1.48% 4.99%
1990 14.39% 0.46%
1991 7.40% 5.24%
1992 1.59% 7.14%
1993 1.80% 1.49%
1994 17.29% 6.21%
1995 20.72% 20.77%
1996 6.28% 1.77%
1997 8.42% 2.26%
1998 28.79% 0.20%
1999 1.08% 21.86%
2000 22.69% 11.52%
2001 7.73% 11.74%
2002 22.88% 8.95%
2003 4.65% 12.45%
2004 22.50% 0.46%
2005 16.60% 12.66%
2006 22.20% 2.49%
2007 16.66% 5.28%
2008 10.97% 1.52%
2009 44.64% 2.89%
2010 12.47% 10.50%
2011 5.58% 2.49%
2012 8.05% 5.40%
2013 13.90% 5.71%
2014 8.65% 6.53%
2015 19.95% 0.52%
2016 20.62% 16.64%
2017 14.86% 10.27%