U.S. Climate Extremes Index (CEI): Graph

NCDC transitioned to the nClimDiv dataset on Thursday, March 13, 2014. This was coincident with the release of the February 2014 monthly monitoring report. For details on this transition, please visit our public FTP site and our U.S. Climate Divisional Database site.

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.

Download: xml csv json
Year Percent
1910 18.60%
1911 28.10%
1912 53.40%
1913 29.80%
1914 7.10%
1915 23.60%
1916 28.70%
1917 38.20%
1918 5.80%
1919 21.00%
1920 31.10%
1921 46.20%
1922 17.00%
1923 17.40%
1924 31.20%
1925 14.40%
1926 27.40%
1927 20.60%
1928 2.90%
1929 26.20%
1930 9.40%
1931 40.40%
1932 10.30%
1933 34.90%
1934 62.10%
1935 4.30%
1936 8.70%
1937 2.70%
1938 28.00%
1939 41.40%
1940 30.00%
1941 17.00%
1942 1.50%
1943 7.30%
1944 7.90%
1945 3.00%
1946 21.90%
1947 0.80%
1948 11.40%
1949 11.80%
1950 27.70%
1951 29.20%
1952 6.40%
1953 31.60%
1954 44.00%
1955 13.40%
1956 15.40%
1957 8.40%
1958 41.60%
1959 6.80%
1960 15.60%
1961 7.30%
1962 2.30%
1963 10.90%
1964 11.30%
1965 9.60%
1966 12.00%
1967 3.80%
1968 15.60%
1969 16.30%
1970 1.30%
1971 6.40%
1972 20.40%
1973 6.30%
1974 1.20%
1975 17.00%
1976 12.80%
1977 3.20%
1978 27.10%
1979 39.90%
1980 3.20%
1981 19.00%
1982 24.90%
1983 25.50%
1984 12.90%
1985 17.70%
1986 4.40%
1987 31.50%
1988 17.60%
1989 17.30%
1990 24.00%
1991 10.90%
1992 24.30%
1993 37.20%
1994 10.60%
1995 2.90%
1996 33.50%
1997 12.60%
1998 39.00%
1999 48.10%
2000 17.00%
2001 23.80%
2002 15.80%
2003 28.10%
2004 4.70%
2005 10.20%
2006 50.30%
2007 33.50%
2008 8.60%
2009 7.30%
2010 8.20%
2011 24.10%
2012 84.30%
2013 13.60%
2014 41.90%

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.