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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March Very Warm: Very Cold:
1895 0.00% 6.03%
1896 0.00% 21.95%
1897 9.36% 36.57%
1898 9.58% 16.64%
1899 0.00% 29.52%
1900 29.15% 9.84%
1901 0.00% 0.00%
1902 5.73% 6.41%
1903 21.04% 1.18%
1904 16.04% 6.99%
1905 28.80% 0.00%
1906 0.00% 50.45%
1907 49.66% 1.12%
1908 30.69% 0.00%
1909 0.00% 1.32%
1910 88.35% 0.00%
1911 20.02% 1.69%
1912 0.45% 46.61%
1913 1.77% 14.75%
1914 6.25% 9.92%
1915 6.05% 48.47%
1916 22.99% 9.53%
1917 0.00% 34.29%
1918 46.81% 0.00%
1919 0.00% 5.53%
1920 0.00% 0.35%
1921 60.97% 0.00%
1922 0.00% 16.51%
1923 0.00% 17.68%
1924 0.00% 34.66%
1925 11.17% 0.00%
1926 10.56% 24.44%
1927 0.54% 0.00%
1928 4.23% 0.00%
1929 8.08% 0.00%
1930 0.00% 3.44%
1931 1.06% 19.14%
1932 0.00% 28.68%
1933 0.00% 0.00%
1934 31.18% 0.77%
1935 35.79% 6.65%
1936 6.05% 0.00%
1937 0.00% 4.97%
1938 46.06% 0.22%
1939 0.00% 1.97%
1940 8.96% 6.18%
1941 7.91% 27.14%
1942 1.80% 3.34%
1943 0.00% 13.22%
1944 0.00% 9.26%
1945 49.75% 7.00%
1946 51.14% 0.00%
1947 4.91% 31.04%
1948 1.10% 31.43%
1949 0.00% 0.00%
1950 0.00% 7.54%
1951 0.00% 22.08%
1952 0.00% 34.85%
1953 11.40% 0.00%
1954 0.00% 4.42%
1955 1.11% 15.64%
1956 0.00% 3.89%
1957 0.00% 0.00%
1958 1.10% 37.67%
1959 2.14% 0.00%
1960 2.27% 54.41%
1961 4.71% 0.00%
1962 0.00% 16.84%
1963 5.56% 0.00%
1964 0.00% 17.15%
1965 0.00% 54.36%
1966 0.00% 0.00%
1967 23.85% 1.67%
1968 21.76% 2.13%
1969 0.00% 53.61%
1970 0.00% 6.36%
1971 0.00% 7.28%
1972 41.64% 1.16%
1973 32.62% 8.18%
1974 28.98% 0.00%
1975 0.00% 2.19%
1976 11.23% 4.11%
1977 17.69% 2.93%
1978 18.96% 2.66%
1979 2.28% 0.00%
1980 0.00% 0.00%
1981 16.50% 0.00%
1982 0.45% 0.00%
1983 3.54% 0.00%
1984 3.48% 10.03%
1985 6.73% 1.84%
1986 51.16% 0.00%
1987 4.55% 1.20%
1988 0.81% 0.00%
1989 19.56% 0.00%
1990 7.42% 0.00%
1991 0.16% 4.58%
1992 30.25% 0.00%
1993 7.74% 0.00%
1994 31.54% 0.00%
1995 0.38% 0.00%
1996 0.35% 2.61%
1997 31.50% 0.00%
1998 0.14% 0.00%
1999 16.24% 0.00%
2000 38.80% 0.00%
2001 11.19% 0.00%
2002 0.51% 9.10%
2003 4.05% 0.00%
2004 62.52% 0.00%
2005 6.34% 0.00%
2006 5.83% 5.25%
2007 79.00% 0.00%
2008 0.00% 0.00%
2009 5.22% 0.21%
2010 18.52% 2.05%
2011 15.77% 0.00%
2012 77.99% 0.00%
2013 15.75% 9.52%
2014 16.33% 8.99%
2015 46.52% 2.08%
2016 82.43% 0.00%
2017 51.69% 0.00%