Wyoming tornadoes

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750 confirmed tornadoes since 1950. Most recent: October 15, 2025, EF1. 2026 so far: 20 preliminary reports preliminary

Counties with the most tornadoes

CountyTornadoes since 1950Per 1,000 sq mi
Laramie County12747
Campbell County9520
Goshen County9040
Platte County5024
Converse County4912
Crook County4114
Natrona County397
Niobrara County3614
Albany County327
Big Horn County3210
Weston County2812
Sweetwater County262
Fremont County222
Johnson County225
Carbon County182

When tornadoes hit here

By month

3230 Jan: 0Feb: 0Mar: 0Apr: 14May: 162Jun: 323Jul: 162Aug: 63Sep: 25Oct: 1Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 323 of 750 tornadoes.

By time of day

1130 12 AM: 1: 1: 13 AM: 0: 1: 06 AM: 1: 0: 09 AM: 0: 3: 1312 PM: 28: 62: 823 PM: 111: 113: 926 PM: 96: 70: 469 PM: 18: 4: 712 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 4:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

420 1950: 3: 0: 1: 7: 2: 4: 2: 3: 13: 31960: 7: 4: 17: 2: 7: 7: 4: 8: 9: 41970: 0: 7: 3: 6: 10: 9: 24: 13: 21: 421980: 15: 4: 16: 4: 19: 7: 10: 13: 13: 101990: 29: 23: 10: 12: 7: 9: 6: 26: 16: 202000: 5: 16: 8: 4: 6: 6: 1: 5: 19: 112010: 20: 7: 4: 8: 13: 8: 2: 11: 23: 202020: 4: 1: 2: 21: 5: 919501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 20 preliminary reports.

By rating

EF0
438
EF1
200
EF2
63
EF3
13
EF4
1
Unknown
35

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

Notable tornadoes

Deadliest

F2, August 12, 2005

2 deaths Longest path

52 miles, F2

June 11, 1962

Most recent tornadoes

DateRatingPath lengthWidthDeathsInjuries
Oct 15, 2025EF10.99 mi125 yd00
Jul 19, 2025EF10.01 mi55 yd00
Jul 1, 2025EF00.79 mi25 yd00
Jun 17, 2025EFU0.1 mi10 yd00
Jun 17, 2025EFU0.1 mi10 yd00
Jun 17, 2025EFU0.1 mi10 yd00
Jun 17, 2025EF11.6 mi450 yd00
Jun 12, 2025EF12.2 mi10 yd00
Jun 11, 2025EFU0.1 mi10 yd00
Sep 9, 2024EF00.19 mi25 yd00
Sep 4, 2024EF00.06 mi10 yd00
Aug 19, 2024EF12.51 mi300 yd00
Jun 20, 2024EFU1.7 mi20 yd00
Apr 25, 2024EFU0.92 mi20 yd00
Jun 26, 2023EF00.1 mi50 yd00
Jun 26, 2023EF13.55 mi1,000 yd00
Jun 26, 2023EF13.57 mi1,000 yd00
Jun 23, 2023EF06 mi200 yd00
Jun 23, 2023EF13.9 mi20 yd00
Jun 23, 2023EF24.72 mi800 yd01

Every Wyoming county

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025. A tornado that crossed a state line counts in each state it touched.