Hail HistoryHome › Illinois › Jefferson County
Hail history for Jefferson County, IL
56 hail reports in Jefferson County since 2006 on 47 days. The largest stones measured 1.75 in (golf ball) on Apr 10, 2013.
Cities in Jefferson County
Recent hail in Jefferson County
| Date | Hail size | Where |
|---|---|---|
| Apr 27, 2026 | 1 in quarter | Mt Vernon Airport 1 hail report |
| Mar 30, 2025 | 1 in quarter | Bakerville, Dix 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 Jefferson County by year
When hail season peaks in Jefferson County
Damaging thunderstorm winds in Jefferson County
74 reports of damaging thunderstorm wind in Jefferson County since 2006, on 62 days. The strongest measured gust was 78 mph on May 31, 2018.
| Date | Strongest gust | Where |
|---|---|---|
| Aug 22, 2026 | damage reported | Dix 1 wind report |
| Jul 29, 2024 | 70 mph, estimated | Texico 1 wind report |
| May 8, 2024 | 70 mph, measured | Mt Vernon, Boyd 2 wind reports |
| May 4, 2024 | 60 mph, estimated | Mt Vernon 1 wind report |
| Mar 14, 2024 | 85 mph, estimated | Mt Vernon 2 wind reports |
| Jul 29, 2023 | 60 mph, estimated | Bluford 1 wind report |
| Jul 1, 2023 | 64 mph, estimated | Mt Vernon 1 wind report |
| Jun 30, 2023 | 70 mph, measured | Mt Vernon 1 wind report |
| May 7, 2023 | 60 mph, estimated | Bonnie 1 wind report |
| Apr 15, 2023 | 64 mph, estimated | Waltonville 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 Jefferson 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).