Hail History

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Hail history for Walworth County, SD

Last hail in the countyAug 29, 20261.5 in (ping pong ball)
Hail days, last 12 months4
Largest hail since 20063 in (tea cup)Aug 23, 2018
Hail days since 200654
Days with hail 1 inch or larger46
Tornadoes in the county12
Damaging wind reports in the county120

119 hail reports in Walworth County since 2006 on 54 days. The largest stones measured 3 in (tea cup) on Aug 23, 2018.

Cities in Walworth County

Recent hail in Walworth County

DateHail sizeWhereSource
Aug 29, 20261.5 in
ping pong ball		Bowdle
2 hail reports		NWS storm report (preliminary)
Aug 24, 20261 in
quarter		Glenham
1 hail report		NWS storm report (preliminary)
Jul 7, 20261 in
quarter		Selby, Java
2 hail reports		NWS storm report (preliminary)
Jun 2, 20261 in
quarter		Lowry
1 hail report		NOAA Storm Events
Aug 13, 20251 in
quarter		Lowry
1 hail report		NOAA Storm Events
Aug 5, 20251 in
quarter		Lowry
1 hail report		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 Walworth County by year

20640720820931031131211331431551631731841932022112212324225426

When hail season peaks in Walworth County

JanFebMarApr4May15Jun12Jul20Aug2Sep1OctNovDec

Damaging thunderstorm winds in Walworth County

120 reports of damaging thunderstorm wind in Walworth County since 2006, on 62 days. The strongest measured gust was 100 mph on Jun 5, 2018.

DateStrongest gustWhereSource
Aug 30, 202660 mph, estimatedMobridge Municipal
1 wind report		NWS storm report (preliminary)
Jul 25, 202667 mph, measuredGlenham, Selby
2 wind reports		NWS storm report (preliminary)
Jul 19, 202664 mph, measuredMobridge Municipal Airp, Mobridge Municipal, Mobridge
3 wind reports		NWS storm report (preliminary)
Jul 7, 202672 mph, measuredAkaska
1 wind report		NWS storm report (preliminary)
Jun 27, 202659 mph, measuredSelby Airport
1 wind report		NOAA Storm Events
Jun 15, 202663 mph, measuredMobridge Airport
1 wind report		NOAA Storm Events
Jun 8, 202660 mph, measuredSelby Airport
1 wind report		NOAA Storm Events
Apr 22, 202668 mph, measuredSelby Airport, Akaska
3 wind reports		NOAA Storm Events
Sep 14, 202570 mph, estimatedMobridge Airport
1 wind report		NOAA Storm Events
Aug 8, 202569 mph, measuredMobridge Airport, Lowry
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 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).