Hail HistoryHome › Illinois › Williamson County
Hail history for Williamson County, IL
83 hail reports in Williamson County since 2006 on 59 days. The largest stones measured 3 in (tea cup) on Jun 30, 2023.
Cities in Williamson County
Recent hail in Williamson County
| Date | Hail size | Where |
|---|---|---|
| May 20, 2025 | 0.88 in nickel | Johnston City 1 hail report |
| May 16, 2025 | 1.75 in golf ball | Cambria, Crainville, Marion 3 hail reports |
| May 1, 2025 | 1 in quarter | Carterville, Marion Wllmson 3 hail reports |
| Mar 30, 2025 | 1.5 in ping pong ball | Bush, Blairsville 2 hail reports |
One row per day: the largest hail reported in the county that day, the places and the number of reports.
Hail days in Williamson County by year
When hail season peaks in Williamson County
Damaging thunderstorm winds in Williamson County
81 reports of damaging thunderstorm wind in Williamson County since 2006, on 61 days. The strongest measured gust was 70 mph on Nov 17, 2013.
| Date | Strongest gust | Where |
|---|---|---|
| Jul 10, 2026 | damage reported | Marion 1 wind report |
| Apr 27, 2026 | 81 mph, estimated | Ferges Town, Marion Wllmson 2 wind reports |
| May 20, 2025 | 60 mph, estimated | Herrin 1 wind report |
| Jul 30, 2024 | 70 mph, estimated | Stiritz 1 wind report |
| Jul 5, 2024 | 81 mph, estimated | Cambria 1 wind report |
| May 26, 2024 | 90 mph, estimated | Stiritz, Corinth, Herrin 4 wind reports |
| May 14, 2024 | 70 mph, estimated | Marion 1 wind report |
| May 8, 2024 | 75 mph, estimated | New Denison 1 wind report |
| Apr 2, 2024 | 85 mph, estimated | Pulleys Mill, Saraville, Neilson 4 wind reports |
| Aug 7, 2023 | 64 mph, estimated | Herrin 1 wind report |
Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.
Filing a roof or car hail claim?
Insurers ask for the date of loss. The dates on this page are when hail was reported near Williamson County; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).