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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June Very Warm: Very Cold:
1895 5.47% 15.39%
1896 19.85% 0.24%
1897 7.75% 9.07%
1898 6.58% 0.00%
1899 6.06% 1.99%
1900 21.71% 0.00%
1901 8.00% 13.94%
1902 14.25% 23.25%
1903 3.25% 55.17%
1904 0.00% 12.98%
1905 2.00% 4.12%
1906 3.18% 15.24%
1907 0.00% 46.09%
1908 0.28% 20.05%
1909 0.00% 0.35%
1910 2.06% 19.87%
1911 38.50% 1.77%
1912 0.00% 31.00%
1913 0.00% 15.17%
1914 23.39% 3.51%
1915 4.17% 40.14%
1916 3.90% 36.09%
1917 0.00% 17.61%
1918 49.92% 4.85%
1919 19.16% 15.12%
1920 0.00% 5.13%
1921 27.18% 4.13%
1922 8.31% 0.00%
1923 5.58% 16.79%
1924 11.69% 16.04%
1925 26.08% 0.58%
1926 11.48% 20.25%
1927 1.45% 18.44%
1928 0.00% 45.39%
1929 0.00% 4.35%
1930 2.94% 2.91%
1931 26.21% 0.00%
1932 1.40% 0.61%
1933 43.20% 1.29%
1934 38.67% 3.98%
1935 0.00% 18.85%
1936 28.09% 0.84%
1937 1.42% 0.08%
1938 1.70% 1.10%
1939 6.68% 4.33%
1940 23.10% 7.04%
1941 0.10% 14.29%
1942 0.23% 5.73%
1943 23.96% 17.90%
1944 16.92% 17.55%
1945 0.83% 45.36%
1946 1.66% 1.38%
1947 0.10% 20.98%
1948 4.31% 1.67%
1949 9.70% 0.00%
1950 1.09% 0.00%
1951 0.00% 30.96%
1952 42.71% 7.28%
1953 33.09% 11.65%
1954 3.92% 10.95%
1955 0.00% 30.73%
1956 32.64% 0.61%
1957 4.96% 0.00%
1958 6.37% 22.19%
1959 13.00% 1.18%
1960 14.50% 0.00%
1961 31.46% 16.83%
1962 0.00% 0.00%
1963 1.68% 8.56%
1964 0.00% 0.19%
1965 0.00% 19.14%
1966 0.00% 11.32%
1967 4.07% 18.21%
1968 0.00% 1.89%
1969 3.53% 29.12%
1970 6.65% 2.26%
1971 7.55% 3.38%
1972 0.00% 17.62%
1973 3.27% 3.65%
1974 19.60% 25.63%
1975 0.00% 5.59%
1976 4.75% 19.42%
1977 23.66% 3.85%
1978 0.94% 0.00%
1979 0.00% 12.35%
1980 13.12% 14.03%
1981 24.56% 2.55%
1982 1.61% 39.00%
1983 0.21% 23.09%
1984 0.97% 0.65%
1985 10.01% 14.09%
1986 26.98% 2.04%
1987 14.37% 3.09%
1988 31.51% 1.36%
1989 0.51% 11.32%
1990 22.59% 0.00%
1991 9.37% 7.14%
1992 7.74% 29.47%
1993 0.36% 8.27%
1994 30.07% 0.00%
1995 6.85% 19.15%
1996 11.61% 0.00%
1997 2.86% 10.69%
1998 21.23% 18.82%
1999 4.35% 0.00%
2000 13.27% 1.27%
2001 13.03% 0.47%
2002 22.56% 0.59%
2003 8.94% 15.28%
2004 3.37% 6.41%
2005 13.61% 2.03%
2006 35.64% 0.00%
2007 12.61% 1.04%
2008 22.45% 0.00%
2009 9.23% 0.08%
2010 35.36% 0.00%
2011 30.76% 0.52%
2012 27.04% 2.07%
2013 26.45% 0.00%
2014 12.55% 0.00%
2015 39.49% 1.10%
2016 41.65% 0.00%
2017 21.19% 0.40%