Wyoming hail history
IndependentNot affiliated with NOAA or the National Weather Service.
Wyoming had hail reported on 348 days from 2016 to 2025, about 35 a year, and on 1,375 days since 1955. The largest hailstone on record in the state is 5.00″ (June 8, 1968). Laramie County had the most hail days of any county from 2016 to 2025 (102).
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Report counts rose over the decades as more people and spotters reported storms, so compare recent years with each other rather than with the 1960s.
Wyoming cities with the most hail days, 2016–2025
| City | Hail days 2016–25 | 1″+ hail days | Largest hail | Last hail |
|---|---|---|---|---|
| Cheyenne | 43 | 32 | 4.25″ | Jun 1, 2026 |
| Wheatland | 19 | 14 | 4.25″ | Jun 1, 2026 |
| Gillette | 16 | 14 | 4.00″ | Jul 17, 2023 |
| Newcastle | 12 | 11 | 2.75″ | Jul 8, 2026 |
| Torrington | 12 | 11 | 3.00″ | Jul 18, 2025 |
| Casper | 8 | 7 | 2.00″ | Jul 6, 2026 |
| Douglas | 8 | 6 | 2.00″ | Jun 16, 2025 |
| Evansville | 8 | 7 | 2.00″ | Jul 6, 2026 |
| Laramie | 6 | 5 | 1.75″ | Jun 17, 2025 |
| Sheridan | 5 | 2 | 2.75″ | Sep 12, 2024 |
| Mills | 5 | 3 | 2.00″ | Jul 6, 2026 |
| Riverton | 5 | 3 | 1.75″ | Jun 23, 2023 |
| Buffalo | 5 | 4 | 1.75″ | Jul 6, 2023 |
| Thermopolis | 5 | 2 | 2.50″ | Jul 29, 2025 |
| Lander | 3 | 3 | 1.75″ | Sep 10, 2023 |
| Bar Nunn | 3 | 1 | 2.00″ | Jul 29, 2025 |
| Rawlins | 2 | 1 | 1.75″ | May 15, 2021 |
| Jackson | 1 | 0 | 1.75″ | Aug 17, 2021 |
| Powell | 1 | 0 | 2.00″ | Jun 7, 2022 |
| Green River | 1 | 1 | 1.00″ | Jun 12, 2016 |
Biggest hail days in Wyoming since 2016
| Day | Largest hail | Reports |
|---|---|---|
| June 20, 2024 | 4.50″ | 9 |
| September 10, 2019 | 4.38″ | 9 |
| June 12, 2017 | 4.25″ | 37 |
| July 19, 2020 | 4.25″ | 30 |
| July 4, 2019 | 4.25″ | 17 |
| May 26, 2019 | 4.25″ | 11 |
| June 28, 2023 | 4.00″ | 8 |
| July 10, 2020 | 3.25″ | 7 |
| July 5, 2019 | 3.00″ | 16 |
| July 17, 2023 | 3.00″ | 13 |
| August 1, 2025 | 3.00″ | 12 |
| July 16, 2019 | 3.00″ | 10 |
The largest hail and the biggest storm days since 1955, with radar swaths since 2019: Biggest hail storms in Wyoming history
Wyoming counties
| County | Hail days 2016–25 | All-time hail reports | Largest hail | Last hail |
|---|---|---|---|---|
| Laramie County | 102 | 1,108 | 5.00″ | Aug 26, 2026 |
| Campbell County | 77 | 584 | 4.25″ | Jun 22, 2026 |
| Goshen County | 76 | 465 | 4.50″ | Aug 25, 2026 |
| Crook County | 75 | 511 | 4.25″ | Jul 3, 2026 |
| Platte County | 60 | 385 | 4.25″ | Aug 22, 2026 |
| Weston County | 52 | 313 | 3.50″ | Aug 12, 2026 |
| Niobrara County | 51 | 223 | 4.25″ | Jun 22, 2026 |
| Johnson County | 37 | 152 | 3.00″ | Sep 12, 2025 |
| Sheridan County | 34 | 227 | 3.00″ | Jul 8, 2026 |
| Converse County | 33 | 160 | 4.00″ | Jul 18, 2025 |
| Natrona County | 30 | 170 | 3.00″ | Jul 6, 2026 |
| Albany County | 21 | 132 | 4.50″ | Aug 22, 2026 |
| Fremont County | 21 | 137 | 2.00″ | Jul 23, 2026 |
| Park County | 11 | 65 | 2.00″ | Jul 18, 2025 |
| Hot Springs County | 10 | 61 | 2.50″ | Jul 29, 2025 |
| Big Horn County | 8 | 63 | 2.50″ | May 26, 2023 |
| Carbon County | 6 | 34 | 2.00″ | May 9, 2026 |
| Lincoln County | 5 | 34 | 1.75″ | Jun 11, 2025 |
| Washakie County | 4 | 50 | 2.75″ | Jul 2, 2019 |
| Teton County | 4 | 37 | 1.75″ | Jun 12, 2022 |
| Sublette County | 4 | 18 | 1.75″ | Jul 5, 2025 |
| Sweetwater County | 3 | 13 | 1.75″ | May 26, 2023 |
| Uinta County | 2 | 2 | 1.00″ | Jun 16, 2020 |
Places with fewer than 5 hail days on record are listed without a link and kept out of search engines.
When hail falls in Wyoming, by month and week: Wyoming hail season
Download every Wyoming hail, tornado and wind report as CSV, by year: Wyoming storm report downloads
All Wyoming cities
Bar Nunn Buffalo Casper Cheyenne Cody Douglas Evansville Gillette Jackson Lander Laramie Mills Newcastle Powell Rawlins Riverton Sheridan Thermopolis Torrington Wheatland Worland
Guides: How to check if it hailed at your address · Hail size chart and roof damage