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Oklahoma Tornadoes by Fujita Scale and Month (1950-2011)

Month F? F0 F1 F2 F3 F4 F5 Total
Jan 0 5 3 7 0 1 0 16
Feb 1 10 22 15 2 1 0 51
Mar 4 85 79 60 17 3 1 249
Apr 13 244 204 163 43 17 1 685
May 34 542 424 234 77 27 5 1343
Jun 7 237 146 81 24 3 0 498
Jul 4 37 43 25 2 0 0 111
Aug 4 35 33 13 2 0 0 87
Sep 3 76 24 17 1 2 0 123
Oct 1 60 41 18 7 1 0 128
Nov 1 27 41 17 7 1 0 94
Dec 0 0 9 12 3 0 0 24
Total 72 1358 1069 669 185 56
 7 3409
Note: F? refers to tornadoes (-) that did not received a Fujita Scale rating.
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