Hail History

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Hail history for Grant County, WI

Last hail in the countyJul 2, 20262 in (hen egg)
Hail days, last 12 months5
Largest hail since 20062.75 in (baseball)Apr 18, 2025
Hail days since 200659
Days with hail 1 inch or larger38
Tornadoes in the county21
Damaging wind reports in the county212

153 hail reports in Grant County since 2006 on 59 days. The largest stones measured 2.75 in (baseball) on Apr 18, 2025.

Cities in Grant County

Recent hail in Grant County

DateHail sizeWhereSource
Jul 2, 20262 in
hen egg		Glen Haven
2 hail reports		NWS storm report (preliminary)
Jun 24, 20261 in
quarter		Five Pts
1 hail report		NOAA Storm Events
Apr 17, 20260.88 in
nickel		Lancaster
1 hail report		NOAA Storm Events
Apr 14, 20262 in
hen egg		Mt Hope, Werley, Patch Grove
4 hail reports		NOAA Storm Events
Mar 10, 20261 in
quarter		Cornelia
1 hail report		NOAA Storm Events
Sep 22, 20252 in
hen egg		Montfort
2 hail reports		NOAA Storm Events
Aug 16, 20251 in
quarter		Lancaster Airport
1 hail report		NOAA Storm Events
Apr 18, 20252.75 in
baseball		Platteville, Cornelia, Burton
7 hail reports		NOAA Storm Events

One row per day: the largest hail reported in the county that day, the places and the number of reports.

Hail days in Grant County by year

40620770830910511212313414415116617118319120121122123224325526

When hail season peaks in Grant County

1JanFeb3Mar11Apr12May11Jun12Jul4Aug3Sep2OctNovDec

Damaging thunderstorm winds in Grant County

212 reports of damaging thunderstorm wind in Grant County since 2006, on 76 days. The strongest measured gust was 81 mph on Jun 10, 2026.

DateStrongest gustWhereSource
Jul 2, 202678 mph, measuredPlatteville, Tennyson, Glen Haven
5 wind reports		NWS storm report (preliminary)
Jun 10, 202685 mph, estimatedLivingston, Lancaster, Platteville Muni Airport
10 wind reports		NOAA Storm Events
May 15, 202672 mph, measuredLancaster Airport, Arthur
2 wind reports		NOAA Storm Events
Apr 23, 202661 mph, measuredLivingston
1 wind report		NOAA Storm Events
Apr 17, 202658 mph, estimatedMontfort
1 wind report		NOAA Storm Events
Apr 14, 202670 mph, measuredFairplay
1 wind report		NOAA Storm Events
Jul 11, 202570 mph, estimatedHazel Green, Potosi, Lancaster Airport
4 wind reports		NOAA Storm Events
Mar 14, 202559 mph, measuredUnion, Blue River
2 wind reports		NOAA Storm Events
Aug 5, 202452 mph, estimatedMuscoda
1 wind report		NOAA Storm Events
Jul 15, 202472 mph, measuredHazel Green, Fairplay
2 wind reports		NOAA Storm Events

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 Grant 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).