Hail HistoryHome › Wisconsin › Walworth County
Hail history for Walworth County, WI
90 hail reports in Walworth County since 2006 on 41 days. The largest stones measured 2.5 in (tennis ball) on May 2, 2018.
Cities in Walworth County
- Whitewater
25 hail days - Elkhorn
28 hail days - Delavan
21 hail days - Lake Geneva
31 hail days - East Troy
29 hail days - Pell Lake
31 hail days - Richmond
16 hail days - Genoa City
28 hail days - Walworth
25 hail days - Delavan Lake
22 hail days - Como
28 hail days - Williams Bay
28 hail days
Recent hail in Walworth County
| Date | Hail size | Where |
|---|---|---|
| Aug 9, 2026 | 1.5 in ping pong ball | Pell Lake, Lake Geneva, Fontana-on-Geneva 4 hail reports |
| Apr 17, 2026 | 1 in quarter | Little Prairie 1 hail report |
| Apr 15, 2026 | 1 in quarter | Elkhorn Airport 1 hail report |
| Apr 2, 2026 | 2 in hen egg | Whitewater 2 hail reports |
| May 15, 2025 | 2 in hen egg | East Troy, Spring Prairie, Little Prairie 6 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 Walworth County by year
When hail season peaks in Walworth County
Damaging thunderstorm winds in Walworth County
146 reports of damaging thunderstorm wind in Walworth County since 2006, on 86 days. The strongest measured gust was 74 mph on Aug 9, 2009.
| Date | Strongest gust | Where |
|---|---|---|
| Jul 3, 2026 | 100 mph, estimated | Darien, Sharon, Delavan Lake 9 wind reports |
| Jun 11, 2026 | 58 mph, estimated | Fontana 1 wind report |
| Apr 17, 2026 | 64 mph, estimated | East Troy 1 wind report |
| Apr 14, 2026 | 64 mph, estimated | Lake Beulah, Whitewater 2 wind reports |
| Apr 2, 2026 | 58 mph, estimated | Whitewater, Elkhorn 2 wind reports |
| Jul 11, 2025 | 58 mph, estimated | Whitewater 1 wind report |
| Jun 3, 2025 | 60 mph, estimated | Walworth Big Foot Airport 1 wind report |
| Mar 15, 2025 | 62 mph, measured | Walworth Big Foot Airport 1 wind report |
| Mar 14, 2025 | 77 mph, estimated | Richmond, Walworth Big Foot Airport 2 wind reports |
| Aug 6, 2024 | 70 mph, estimated | Wandawega, Troy, Millard 4 wind reports |
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 Walworth 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).