|
|
Nombre de tornades enregistré au USA suivant la NOAA :
ANNEES
|
JANV.
|
FEV.
|
MARS
|
AVRIL
|
MAI
|
JUIN
|
JUIL.
|
AOUT
|
SEPT.
|
OCT.
|
NOV.
|
DEC
|
ANNEE
|
1950
|
7
|
20
|
21
|
15
|
61
|
28
|
23
|
13
|
3
|
2
|
4
|
4
|
201
|
1951
|
2
|
10
|
6
|
26
|
57
|
76
|
23
|
27
|
9
|
2
|
12
|
10
|
260
|
1952
|
12
|
27
|
43
|
37
|
34
|
34
|
27
|
16
|
1
|
0
|
6
|
3
|
240
|
1953
|
14
|
16
|
40
|
47
|
94
|
111
|
32
|
24
|
5
|
6
|
12
|
21
|
422
|
1954
|
2
|
17
|
62
|
113
|
101
|
107
|
45
|
49
|
21
|
14
|
2
|
17
|
550
|
1955
|
3
|
4
|
43
|
99
|
148
|
153
|
49
|
33
|
15
|
23
|
20
|
3
|
593
|
1956
|
2
|
47
|
31
|
85
|
79
|
65
|
92
|
42
|
16
|
29
|
7
|
9
|
504
|
1957
|
17
|
5
|
38
|
216
|
228
|
147
|
55
|
20
|
17
|
18
|
59
|
38
|
858
|
1958
|
11
|
20
|
15
|
76
|
68
|
128
|
121
|
46
|
24
|
9
|
45
|
1
|
564
|
1959
|
16
|
20
|
43
|
30
|
226
|
73
|
63
|
38
|
58
|
24
|
11
|
2
|
604
|
1960
|
9
|
28
|
28
|
70
|
201
|
125
|
42
|
48
|
21
|
18
|
25
|
1
|
616
|
1961
|
1
|
31
|
124
|
74
|
137
|
107
|
77
|
27
|
53
|
14
|
36
|
16
|
697
|
1962
|
12
|
25
|
37
|
41
|
200
|
171
|
78
|
51
|
24
|
11
|
5
|
2
|
658
|
1963
|
15
|
6
|
48
|
84
|
71
|
90
|
62
|
26
|
33
|
13
|
15
|
0
|
463
|
1964
|
14
|
2
|
36
|
157
|
134
|
137
|
63
|
79
|
25
|
22
|
17
|
18
|
704
|
1965
|
21
|
32
|
34
|
123
|
273
|
147
|
85
|
61
|
64
|
16
|
34
|
7
|
897
|
1966
|
1
|
28
|
12
|
80
|
98
|
126
|
100
|
58
|
22
|
29
|
20
|
11
|
585
|
1967
|
39
|
8
|
42
|
149
|
116
|
210
|
90
|
28
|
139
|
36
|
8
|
61
|
926
|
1968
|
5
|
7
|
28
|
102
|
145
|
136
|
56
|
66
|
25
|
14
|
44
|
32
|
660
|
1969
|
3
|
5
|
8
|
68
|
145
|
137
|
98
|
70
|
20
|
26
|
5
|
23
|
608
|
1970
|
9
|
16
|
25
|
117
|
88
|
134
|
82
|
55
|
54
|
50
|
10
|
14
|
654
|
1971
|
19
|
83
|
40
|
75
|
166
|
199
|
100
|
50
|
47
|
38
|
16
|
56
|
889
|
1972
|
33
|
7
|
69
|
96
|
140
|
114
|
115
|
59
|
49
|
34
|
17
|
8
|
741
|
1973
|
33
|
10
|
80
|
150
|
250
|
224
|
80
|
51
|
69
|
25
|
81
|
49
|
1158
|
1974
|
24
|
23
|
36
|
267
|
144
|
194
|
59
|
107
|
25
|
45
|
13
|
8
|
898
|
1975
|
52
|
45
|
84
|
108
|
188
|
196
|
79
|
60
|
34
|
12
|
39
|
22
|
897
|
1976
|
12
|
36
|
180
|
113
|
155
|
169
|
84
|
38
|
35
|
11
|
0
|
1
|
878
|
1977
|
5
|
17
|
64
|
88
|
228
|
132
|
99
|
82
|
65
|
25
|
24
|
23
|
835
|
1978
|
23
|
7
|
17
|
107
|
213
|
148
|
143
|
65
|
20
|
7
|
9
|
30
|
850
|
1979
|
16
|
4
|
53
|
123
|
112
|
150
|
132
|
126
|
69
|
47
|
21
|
2
|
802
|
1980
|
5
|
11
|
41
|
137
|
203
|
217
|
95
|
73
|
37
|
43
|
3
|
1
|
857
|
1981
|
2
|
25
|
33
|
84
|
187
|
223
|
98
|
64
|
26
|
32
|
7
|
1
|
752
|
1982
|
18
|
3
|
60
|
150
|
329
|
196
|
95
|
34
|
38
|
9
|
19
|
96
|
1054
|
1983
|
13
|
41
|
71
|
65
|
249
|
178
|
99
|
76
|
19
|
13
|
49
|
58
|
902
|
1984
|
1
|
27
|
73
|
176
|
169
|
242
|
72
|
47
|
17
|
49
|
30
|
4
|
907
|
1985
|
2
|
7
|
38
|
134
|
182
|
82
|
51
|
108
|
40
|
18
|
19
|
3
|
584
|
1986
|
0
|
30
|
76
|
84
|
173
|
134
|
88
|
67
|
65
|
26
|
17
|
5
|
765
|
1987
|
6
|
19
|
38
|
20
|
126
|
132
|
163
|
63
|
19
|
1
|
55
|
14
|
656
|
1988
|
17
|
4
|
28
|
58
|
132
|
63
|
103
|
61
|
76
|
19
|
121
|
20
|
702
|
1989
|
14
|
18
|
43
|
82
|
231
|
252
|
59
|
36
|
31
|
30
|
57
|
3
|
856
|
1990
|
11
|
57
|
86
|
108
|
243
|
329
|
106
|
60
|
45
|
35
|
18
|
35
|
1133
|
1991
|
29
|
11
|
157
|
204
|
335
|
216
|
64
|
46
|
26
|
21
|
20
|
3
|
1132
|
1992
|
15
|
29
|
55
|
53
|
137
|
399
|
213
|
115
|
81
|
34
|
146
|
20
|
1297
|
1993
|
17
|
34
|
48
|
85
|
177
|
313
|
242
|
112
|
65
|
55
|
19
|
6
|
1173
|
1994
|
13
|
9
|
58
|
205
|
161
|
234
|
155
|
120
|
30
|
51
|
42
|
4
|
1082
|
1995
|
36
|
7
|
49
|
130
|
391
|
216
|
162
|
53
|
19
|
74
|
79
|
18
|
1234
|
1996
|
35
|
14
|
71
|
177
|
235
|
128
|
202
|
72
|
101
|
68
|
55
|
15
|
1173
|
1997
|
50
|
23
|
102
|
114
|
225
|
193
|
188
|
84
|
32
|
100
|
25
|
12
|
1148
|
1998
|
47
|
72
|
72
|
82
|
310
|
376
|
82
|
61
|
104
|
86
|
26
|
6
|
1324
|
1999
|
212
|
22
|
56
|
177
|
310
|
289
|
102
|
79
|
56
|
17
|
7
|
15
|
1342
|
2000
|
16
|
56
|
103
|
136
|
241
|
135
|
148
|
52
|
47
|
63
|
48
|
26
|
1071
|
2001
|
5
|
30
|
33
|
135
|
241
|
248
|
120
|
69
|
84
|
116
|
110
|
22
|
1213
|
2002
|
3
|
2
|
45
|
116
|
204
|
97
|
68
|
86
|
60
|
55
|
98
|
99
|
941
|
2003
|
0
|
18
|
43
|
154
|
516
|
292
|
168
|
44
|
32
|
26
|
49
|
0
|
1342
|
2004
|
3
|
10
|
53
|
135
|
526
|
283
|
128
|
182
|
235
|
58
|
115
|
33
|
1715
|
2005
|
28
|
6
|
54
|
106
|
115
|
281
|
125
|
124
|
119
|
20
|
117
|
15
|
1110
|
2006
|
44
|
14
|
143
|
324
|
168
|
139
|
68
|
98
|
91
|
66
|
50
|
35
|
1241
|
2007
|
22
|
47
|
182
|
188
|
282
|
149
|
50
|
77
|
50
|
87
|
6
|
22
|
1162
|
2008
|
84
|
148
|
126
|
189
|
460
|
380
|
120
|
145
|
133
|
28
|
18
|
46
|
1831
|
2009
|
6
|
36
|
115
|
227
|
201
|
270
|
118
|
60
|
8
|
64
|
2
|
52
|
1158
|
2010
|
28
|
1
|
36
|
197
|
290
|
428
|
174
|
70
|
60
|
122
|
63
|
60
|
1529
|
2011
|
16
|
63
|
75
|
758
|
332
|
160
|
101
|
57
|
53
|
23
|
44
|
15
|
1697
|
2012
|
79
|
57
|
154
|
206
|
121
|
110
|
37
|
38
|
39
|
37
|
7
|
51
|
936
|
2013
|
74
|
|
|
|
|
|
|
|
|
|
|
|
En rouge le maximum de tornades de tel mois depuis 1950.