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Extreme Weather

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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