U.S. Severe Weather Annual Frequencies

U.S. Annual Severe Weather Data

Frequency of U.S. Tornadoes

These data were acquired from numerous sources which are listed below the table. There may be some discrepancies
in comparing different data sets. Unfortunately there is no process in place to resolve any discrepancies.

Totals: Annual Number of Tornadoes; Annual Number of days with tornadoes;

Tornado data begin in 1916.

Year	Tornado Totals	Year	Tornado Days	Year
2015	948	2015	135	2015
2014	888	2014	175	2014
2013	908	2013	152	2013
2012	939	2012	173	2012
2011	1691	2011	179	2011
2010	1282	2010	160	2010
2009	1156	2009	168	2009
2008	1692	2008	182	2008
2007	1096	2007	176	2007
2006	1103	2006	177	2006
2005	1265	2005	181	2005
2004	1817	2004	190	2004
2003	1374	2003	164	2003
2002	934	2002	170	2002
2001	1215	2001	173	2001
2000	1075	2000	211	2000
1999	1339	1999	186	1999
1998	1424	1998	203	1998
1997	1148	1997	196	1997
1996	1173	1996	196	1996
1995	1235	1995	179	1995
1994	1082	1994	199	1994
1993	1173	1993	186	1993
1992	1297	1992	193	1992
1991	1132	1991	179	1991
1990	1133	1990	181	1990
1989	856	1989	160	1989
1988	702	1988	163	1988
1987	656	1987	151	1987
1986	765	1986	169	1986
1985	684	1985	167	1985
1984	907	1984	168	1984
1983	931	1983	187	1983
1982	1047	1982	180	1982
1981	782	1981	171	1981
1980	866	1980	178	1980
1979	855	1979	182	1979
1978	789	1978	175	1978
1977	852	1977	190	1977
1976	834	1976	167	1976
1975	919	1975	205	1975
1974	945	1974	185	1974
1973	1102	1973	206	1973
1972	741	1972	194	1972
1971	889	1971	192	1971
1970	653	1970	171	1970
1969	608	1969	157	1969
1968	660	1968	173	1968
1967	926	1967	173	1967
1966	585	1966	157	1966
1965	897	1965	176	1965
1964	704	1964	157	1964
1963	463	1963	148	1963
1962	657	1962	150	1962
1961	697	1961	171	1961
1960	616	1960	168	1960
1959	604	1959	159	1959
1958	564	1958	165	1958
1957	858	1957	151	1957
1956	504	1956	149	1956
1955	593	1955	151	1955
1954	550	1954	161	1954
1953	422	1953	136	1953
1952	240	1952	98	1952
1951	260	1951	108	1951
1950	201	1950	91	1950
1949	249	1949	80	1949
1948	183	1948	68	1948
1947	165	1947	78	1947
1946	106	1946	65	1946
1945	121	1945	66	1945
1944	169	1944	68	1944
1943	152	1943	61	1943
1942	167	1942	66	1942
1941	118	1941	57	1941
1940	124	1940	62	1940
1939	152	1939	75	1939
1938	213	1938	76	1938
1937	147	1937	75	1937
1936	151	1936	71	1936
1935	180	1935	77	1935
1934	147	1934	77	1934
1933	258	1933	96	1933
1932	151	1932	67	1932
1931	94	1931	57	1931
1930	192	1930	72	1930
1929	197	1929	74	1929
1928	203	1928	79	1928
1927	163	1927	62	1927
1926	111	1926	57	1926
1925	119	1925	65	1925
1924	130	1924	57	1924
1923	102	1923	59	1923
1922	108	1922	64	1922
1921	105	1921	55	1921
1920	87	1920	50	1920
1919	64	1919	35	1919
1918	81	1918	45	1918
1917	121	1917	38	1917
1916	90	1916	36	1916
Year	Tornado Totals	Year	Tornado Days	Year

DATA SOURCES:
1940-2011 (72 years) List of all Severe Weather Fatalities
2011 Annual Summary
Hurricane maps and frequency (1851-2010
National Climatic Data Center
NOAA/NWS Hazardous Weather Statistics
NOAA, Storm Events
Storm Data
Storm Prediction Center
University of Colorado, Science Policy
Tropical Cyclone Climatology

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