Hail History

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Hail history for Hamlin County, SD

Last hail in the countyJun 3, 20261 in (quarter)
Hail days, last 12 months1
Largest hail since 20062.75 in (baseball)Jul 17, 2010
Hail days since 200649
Days with hail 1 inch or larger35
Tornadoes in the county6
Damaging wind reports in the county64

102 hail reports in Hamlin County since 2006 on 49 days. The largest stones measured 2.75 in (baseball) on Jul 17, 2010.

Recent hail in Hamlin County

DateHail sizeWhereSource
Jun 3, 20261 in
quarter		Thomas, Castlewood
2 hail reports		NOAA Storm Events
Sep 2, 20251 in
quarter		Hayti
1 hail report		NOAA Storm Events
Jul 27, 20251.75 in
golf ball		Hazel, Castlewood
3 hail reports		NOAA Storm Events
Jul 7, 20251 in
quarter		Hayti
1 hail report		NOAA Storm Events
Jun 28, 20251 in
quarter		Castlewood, Thomas, Stone Bridge
3 hail reports		NOAA Storm Events
Jun 19, 20250.75 in
penny		Castlewood
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 Hamlin County by year

506207108093102112122131143154167173182192022122223224525126

When hail season peaks in Hamlin County

JanFebMar1Apr9May14Jun12Jul5Aug7Sep1OctNovDec

Damaging thunderstorm winds in Hamlin County

64 reports of damaging thunderstorm wind in Hamlin County since 2006, on 31 days. The strongest measured gust was 93 mph on Jul 17, 2010.

DateStrongest gustWhereSource
Aug 29, 202660 mph, measuredBryant
1 wind report		NWS storm report (preliminary)
Jul 2, 202660 mph, estimatedHayti, Bryant
4 wind reports		NWS storm report (preliminary)
Jun 10, 202670 mph, estimatedDempster, Castlewood, Stone Bridge
7 wind reports		NOAA Storm Events
Aug 16, 202581 mph, measuredLake Norden
1 wind report		NOAA Storm Events
Aug 5, 202571 mph, measuredLake Norden
1 wind report		NOAA Storm Events
Jun 20, 202564 mph, estimatedLake Norden, Estelline Muni Airport
2 wind reports		NOAA Storm Events
Jun 19, 202568 mph, measuredLake Norden
2 wind reports		NOAA Storm Events
Jul 31, 202458 mph, estimatedCastlewood
1 wind report		NOAA Storm Events
Jul 6, 202460 mph, estimatedBryant
1 wind report		NOAA Storm Events
Jun 2, 202470 mph, estimatedStone Bridge, Estelline Muni Airport
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 Hamlin 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).