U.S. Climate Extremes Index (CEI)

Graph

Choose a period/season and an indicator from the options below and click "Plot" to create a time series graph. Note that the sixth indicator (Step 6) is not calculated for the spring (March-May), winter (December-February) and cold (October-March) seasons since most months during these periods are outside of the traditional hurricane season.



Move mouse towards an axis until highlighted. Left-click mouse to pan. Shift key + left-click to zoom.

Year Percent
1910 12.14%
1911 32.30%
1912 29.96%
1913 7.58%
1914 16.22%
1915 20.78%
1916 11.30%
1917 29.32%
1918 6.92%
1919 11.62%
1920 21.30%
1921 38.48%
1922 22.32%
1923 7.02%
1924 21.64%
1925 30.08%
1926 18.40%
1927 36.70%
1928 17.78%
1929 28.30%
1930 14.40%
1931 22.02%
1932 27.50%
1933 28.94%
1934 8.58%
1935 6.36%
1936 15.44%
1937 10.96%
1938 15.78%
1939 9.86%
1940 35.80%
1941 20.10%
1942 7.38%
1943 21.28%
1944 8.94%
1945 7.28%
1946 14.68%
1947 15.40%
1948 21.00%
1949 25.32%
1950 10.66%
1951 10.24%
1952 7.26%
1953 19.58%
1954 37.90%
1955 18.68%
1956 13.44%
1957 15.80%
1958 37.78%
1959 15.24%
1960 24.74%
1961 15.38%
1962 10.72%
1963 28.26%
1964 32.58%
1965 12.34%
1966 32.24%
1967 16.14%
1968 28.08%
1969 36.26%
1970 7.76%
1971 11.66%
1972 16.28%
1973 14.44%
1974 10.62%
1975 27.90%
1976 36.22%
1977 6.72%
1978 17.34%
1979 35.18%
1980 4.90%
1981 28.34%
1982 13.60%
1983 31.28%
1984 10.62%
1985 13.82%
1986 20.52%
1987 4.18%
1988 18.42%
1989 25.64%
1990 49.32%
1991 35.08%
1992 23.40%
1993 6.28%
1994 17.74%
1995 15.64%
1996 22.60%
1997 13.96%
1998 48.14%
1999 24.98%
2000 12.66%
2001 12.50%
2002 23.82%
2003 30.50%
2004 20.00%
2005 12.70%
2006 26.42%
2007 46.08%
2008 10.58%
2009 18.18%
2010 16.20%
2011 33.82%
2012 39.72%

View CEI Data Files

Limitations: Statistics for the most recent period/season are computed from a fraction of the U.S. which has data available at that time. Extreme percentage values can and will likely change as final quality controlled data become available and fill in the data gaps.