Hail History

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Hail history for Gregory County, SD

Last hail in the countySep 1, 20261 in (quarter)
Hail days, last 12 months3
Largest hail since 20062.75 in (baseball)Aug 25, 2024
Hail days since 200671
Days with hail 1 inch or larger51
Tornadoes in the county9
Damaging wind reports in the county97

142 hail reports in Gregory County since 2006 on 71 days. The largest stones measured 2.75 in (baseball) on Aug 25, 2024.

Recent hail in Gregory County

DateHail sizeWhereSource
Sep 1, 20262.5 in
tennis ball		Pickstown, Fairfax
4 hail reports		NWS storm report (preliminary)
Jul 7, 20261 in
quarter		Burke
1 hail report		NWS storm report (preliminary)
May 17, 20261.25 in
half dollar		Burke
1 hail report		NOAA Storm Events
Aug 3, 20251 in
quarter		Gregory
1 hail report		NOAA Storm Events
Jul 28, 20251.75 in
golf ball		Burke
1 hail report		NOAA Storm Events
Jul 15, 20251.25 in
half dollar		Gregory Airport
1 hail report		NOAA Storm Events
Jun 28, 20251 in
quarter		Herrick
2 hail reports		NOAA Storm Events
Jun 19, 20251 in
quarter		Herrick
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 Gregory County by year

10660712087096102112121131421531631711871932022112223424525326

When hail season peaks in Gregory County

JanFeb2Mar1Apr11May23Jun14Jul15Aug5SepOctNovDec

Damaging thunderstorm winds in Gregory County

97 reports of damaging thunderstorm wind in Gregory County since 2006, on 60 days. The strongest measured gust was 86 mph on Jun 28, 2026.

DateStrongest gustWhereSource
Sep 1, 202656 mph, measuredPickstown
1 wind report		NWS storm report (preliminary)
Jul 19, 202665 mph, measuredDixon
2 wind reports		NWS storm report (preliminary)
Jul 1, 202666 mph, measuredFairfax
1 wind report		NWS storm report (preliminary)
Jun 28, 202686 mph, measuredHerrick, Dallas, Fort Randall
4 wind reports		NOAA Storm Events
Jun 9, 202672 mph, estimatedFairfax, Herrick, Fort Randall
6 wind reports		NOAA Storm Events
May 17, 202678 mph, measuredFort Randall, Herrick, Bonesteel
3 wind reports		NOAA Storm Events
Aug 17, 202563 mph, measuredDixon
1 wind report		NOAA Storm Events
Aug 16, 202568 mph, measuredDixon
2 wind reports		NOAA Storm Events
Aug 13, 202562 mph, measuredHerrick, Paxton
2 wind reports		NOAA Storm Events
Jul 15, 202571 mph, measuredDixon, Herrick, Fort Randall
4 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 Gregory 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).