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 21.16%
1911 16.94%
1912 24.80%
1913 20.14%
1914 20.94%
1915 36.96%
1916 19.84%
1917 22.94%
1918 16.66%
1919 21.96%
1920 17.56%
1921 18.48%
1922 12.94%
1923 16.96%
1924 22.84%
1925 18.52%
1926 14.38%
1927 26.44%
1928 21.20%
1929 14.24%
1930 19.18%
1931 24.06%
1932 11.54%
1933 20.30%
1934 34.52%
1935 10.32%
1936 36.94%
1937 14.96%
1938 10.38%
1939 10.16%
1940 17.92%
1941 21.42%
1942 13.30%
1943 20.20%
1944 18.30%
1945 17.28%
1946 12.14%
1947 13.80%
1948 10.54%
1949 17.30%
1950 24.74%
1951 23.16%
1952 17.28%
1953 19.96%
1954 28.80%
1955 15.74%
1956 15.64%
1957 11.28%
1958 19.20%
1959 12.10%
1960 11.62%
1961 25.58%
1962 9.44%
1963 15.04%
1964 13.66%
1965 18.08%
1966 11.92%
1967 24.94%
1968 10.62%
1969 6.54%
1970 10.98%
1971 7.14%
1972 15.00%
1973 16.30%
1974 14.50%
1975 15.06%
1976 23.54%
1977 12.44%
1978 11.34%
1979 15.14%
1980 25.48%
1981 14.62%
1982 13.76%
1983 26.82%
1984 17.06%
1985 15.22%
1986 11.34%
1987 13.14%
1988 27.92%
1989 18.38%
1990 11.80%
1991 16.12%
1992 35.92%
1993 32.84%
1994 18.62%
1995 19.78%
1996 17.38%
1997 15.42%
1998 22.64%
1999 16.02%
2000 19.66%
2001 16.66%
2002 27.56%
2003 26.14%
2004 27.70%
2005 21.62%
2006 27.04%
2007 33.92%
2008 18.84%
2009 23.06%
2010 29.24%
2011 38.94%
2012 32.40%

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.