Wyoming sees a moderate amount of severe weather each year, with 748 confirmed tornadoes, 4,765 hailstorm events and 2,531 damaging-wind events recorded by the National Weather Service since 1950., and averages 10 tornadoes per year over the 75-year record. Most of Wyoming’s severe weather comes from short-lived high-elevation thunderstorms producing hail and damaging wind rather than long-track tornadoes. The interactive map below plots every significant severe-weather event in Wyoming from the official NOAA Storm Events Database (1950 through September 2025).
Use the map to find your county, click any marker for the date, magnitude, and casualty details of that event, and switch between tornadoes, hail and wind using the chips. For the national view across all 50 states, see our NOAA Storm Reports interactive map. For tornado tracks specifically, see the US Tornado Tracks map; for hail size and frequency, the US Hailstorms map.
—Significant events
—Tornadoes
—Hailstorms ≥ 2″
—Wind ≥ 65 kt
—Direct deaths
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Wyoming Severe Weather by the Numbers (1950–2025)
748 tornadoes recorded between 1950 and 2025
75 violent tornadoes rated F2/EF2 or stronger
4 direct tornado deaths and 115 direct injuries
4,765 hailstorm events recorded by the NWS
2,531 damaging-wind events on record
10 tornadoes per year on average across the 75-year record
June is the peak severe-weather month, accounting for roughly 42.6% of Wyoming tornadoes
92 total direct deaths from all severe-weather event types tracked by the NWS
When Wyoming Severe Weather Happens
Wyoming tornado activity is heavily concentrated in spring. March, April, May and June account for 66% of all Wyoming tornadoes, with June alone responsible for roughly 42.6%.
June: 319 tornadoes (42.6%) — peak month
May: 164 tornadoes (21.9%)
July: 159 tornadoes (21.3%)
August: 63 tornadoes (8.4%)
September: 28 tornadoes (3.7%)
April: 14 tornadoes (1.9%)
Top 10 Wyoming Counties by Tornado Frequency
Tornado activity in Wyoming is geographically broad, but a handful of counties have logged many times the state average. The combination of population density (more spotters and damage reports), county land area and local climatology drives the rankings below.
County
Tornadoes since 1950
Laramie
127
Campbell
92
Goshen
90
Platte
50
Converse
46
Natrona
40
Crook
37
Niobrara
34
Big Horn
33
Albany
30
Wyoming Tornado Strength Distribution
Most Wyoming tornadoes are weak: roughly 89% are rated F0/EF0 or F1/EF1. Violent tornadoes (F2+/EF2+) account for around 11.2% of rated tornadoes in the state.
F0/EF0 (weak): 409 tornadoes — 60.9% of rated events
F1/EF1: 188 tornadoes — 28% of rated events
F2/EF2 (strong): 63 tornadoes — 9.4% of rated events
F3/EF3: 11 tornadoes — 1.6% of rated events
F4/EF4 (violent): 1 tornadoes — 0.1% of rated events
Record-Setting Severe Weather in Wyoming
Largest hailstone: 5.00 inches in diameter, observed in Laramie County on June 8, 1968. The three largest hailstones on record in Wyoming measured 5.00″, 4.50″, 4.50″.
Highest measured wind gust: 83 knots (96 mph) recorded in Fremont County near South Pass City on July 3, 2023. Most damaging-wind events in Wyoming are estimated rather than measured because anemometers are sparse across the rural areas where supercells most often produce destructive thunderstorm winds.
How Wyoming Compares Nationally
Wyoming ranks 28th nationally for tornado frequency, in the middle of the pack of US states by severe-weather activity.
Wyoming hail total: 4,765 hail events on record since 1950.
Wyoming wind total: 2,531 damaging-wind events on record since 1950.
Frequently Asked Questions
How many tornadoes does Wyoming have on average per year?
Wyoming averages 10 tornadoes per year over the 1950–2025 period. Counts vary widely year to year, but the long-term mean over 75 years of NWS records is a reliable benchmark for typical activity.
Where in Wyoming are tornadoes most common?
The single county with the most tornadoes on record is Laramie County with 127 events. The three most active counties overall are Laramie, Campbell, Goshen.
How does Wyoming compare to its neighbors?
Wyoming shares a severe-weather climate with Montana, South Dakota, Nebraska, Colorado, Utah, Idaho. Severe storms regularly cross state lines, so the same supercells, hail cores and wind events often appear in Wyoming’s neighbors’ records on the same date.
How recent is the data on this map?
The map and statistics on this page are pulled from NOAA’s official Storm Events Database, which currently runs from January 1950 through September 2025. New records typically appear in the database within 30–90 days of the event date, once damage surveys and ratings are complete.
Compare Wyoming to Neighboring States
Severe weather doesn’t stop at state lines. The same supercell systems that produce Wyoming tornadoes regularly cross into neighboring states. Compare Wyoming’s storm history to its land neighbors:
I'm Daniel O'Donohue, the voice and creator behind The MapScaping Podcast ( A podcast for the geospatial community ). With a professional background as a geospatial specialist, I've spent years harnessing the power of spatial to unravel the complexities of our world, one layer at a time.
