Hail History

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Hail history for Mellette County, SD

Last hail in the countyJun 29, 20261 in (quarter)
Hail days, last 12 months2
Largest hail since 20064.5 in (softball)Aug 26, 2020
Hail days since 200657
Days with hail 1 inch or larger47
Damaging wind reports in the county116

92 hail reports in Mellette County since 2006 on 57 days. The largest stones measured 4.5 in (softball) on Aug 26, 2020.

Recent hail in Mellette County

DateHail sizeWhereSource
Jun 29, 20261 in
quarter		White River
1 hail report		NOAA Storm Events
Jun 2, 20261.5 in
ping pong ball		White River
1 hail report		NOAA Storm Events
Jul 20, 20250.75 in
penny		Cedar Butte
1 hail report		NOAA Storm Events
Jul 1, 20251.75 in
golf ball		White River
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 Mellette County by year

6063074085092104112122131415116217318519320421122523124225226

When hail season peaks in Mellette County

JanFebMarApr7May17Jun15Jul15Aug3SepOctNovDec

Damaging thunderstorm winds in Mellette County

116 reports of damaging thunderstorm wind in Mellette County since 2006, on 75 days. The strongest measured gust was 96 mph on Aug 11, 2026.

DateStrongest gustWhereSource
Aug 24, 202664 mph, measuredWhite River, Wood
3 wind reports		NWS storm report (preliminary)
Aug 19, 202650 mph, measuredCedar Butte
1 wind report		NWS storm report (preliminary)
Aug 12, 2026damage reportedWood, White River
3 wind reports		NWS storm report (preliminary)
Aug 11, 202696 mph, measuredWhite River, Cedar Butte
10 wind reports		NWS storm report (preliminary)
Jul 29, 202654 mph, measuredWood
1 wind report		NWS storm report (preliminary)
Jul 27, 202650 mph, measuredWhite River
1 wind report		NWS storm report (preliminary)
Jun 29, 202670 mph, estimatedWhite River
1 wind report		NOAA Storm Events
Jun 9, 202660 mph, estimatedWhite River
1 wind report		NOAA Storm Events
Jun 2, 202660 mph, estimatedWhite River
1 wind report		NOAA Storm Events
Aug 13, 202563 mph, measuredCedar Butte, White River
3 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 Mellette 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).