National Weather Service United States Department of Commerce
Month F? F0 F1 F2 F3 F4 F5 Weak Str. Vio Sig. Total
Jan 0 5 4 8 0 1 0 9 8 1 9 18
Feb 1 10 22 15 2 1 0 32 17 1 18 51
Mar 4 97 81 65 17 3 1 178 82 4 86 268
Apr 13 293 254 165 44 17 1 547 209 18 227 787
May 44 629 480 247 86 29 6 1109 333 35 368 1521
Jun 7 242 147 81 24 3 0 389 105 3 108 504
Jul 4 38 48 25 2 0 0 86 27 0 27 117
Aug 4 36 33 13 2 0 0 69 15 0 15 88
Sep 3 77 24 17 1 2 0 101 18 2 20 124
Oct 1 60 43 18 7 1 0 103 25 1 26 130
Nov 1 29 47 18 7 1 0 76 25 1 26 103
Dec 0 2 10 13 3 0 0 12 16 0 16 28
Total 82 1518 1192 686 195 58 8 2710 881 66 947 3739
Note: F? refers to tornadoes (-) that did not received a Fujita Scale or Enhanced Fujita Scale rating.