Hail HistoryHome › Illinois › St. Clair County
Hail history for St. Clair County, IL
171 hail reports in St. Clair County since 2006 on 91 days. The largest stones measured 3.5 in on Apr 28, 2012.
Cities in St. Clair County
- Belleville
65 hail days - O'Fallon
67 hail days - East Saint Louis
79 hail days - Fairview Heights
69 hail days - Cahokia
87 hail days - Swansea
71 hail days - Shiloh
63 hail days - Mascoutah
40 hail days - Centreville
90 hail days - Lebanon
47 hail days - Freeburg
50 hail days - Caseyville
78 hail days - Washington Park
71 hail days - Dupo
74 hail days - Millstadt
61 hail days - Smithton
44 hail days - Scott Air Force Base
49 hail days - Fairmont City
70 hail days
Recent hail in St. Clair County
| Date | Hail size | Where |
|---|---|---|
| Apr 27, 2026 | 1 in quarter | Belleville 1 hail report |
| Apr 2, 2025 | 1.75 in golf ball | Willard, French Vlg 2 hail reports |
| Mar 30, 2025 | 1.5 in ping pong ball | New Athens, Imbs, Atlee Ogles 4 hail reports |
| Mar 14, 2025 | 1.75 in golf ball | O Fallon, Willard, Glenview 9 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 St. Clair County by year
When hail season peaks in St. Clair County
Damaging thunderstorm winds in St. Clair County
196 reports of damaging thunderstorm wind in St. Clair County since 2006, on 122 days. The strongest measured gust was 81 mph on May 26, 2024.
| Date | Strongest gust | Where |
|---|---|---|
| Apr 27, 2026 | 58 mph, estimated | Belleville 1 wind report |
| Mar 15, 2026 | 69 mph, estimated | Old Marissa, New Athens 2 wind reports |
| Mar 11, 2026 | 58 mph, estimated | New Athens 1 wind report |
| Jul 6, 2025 | 74 mph, estimated | Caseyville, Lebanon 2 wind reports |
| May 16, 2025 | 69 mph, estimated | East Swansea 1 wind report |
| Apr 20, 2025 | 75 mph, estimated | Floraville, Belleville 2 wind reports |
| Apr 19, 2025 | 63 mph, estimated | Freeburg 1 wind report |
| Apr 2, 2025 | 69 mph, estimated | Dupo, East Stl Airport, Atlee Ogles 3 wind reports |
| Mar 14, 2025 | 90 mph, estimated | Lebanon, O Fallon, Shiloh Station 11 wind reports |
| May 26, 2024 | 81 mph, measured | Dupo 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 St. Clair 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).