Hail History

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Hail history for Yankton County, SD

Last hail in the countyAug 20, 20261 in (quarter)
Hail days, last 12 months4
Largest hail since 20062.75 in (baseball)Jun 29, 2017
Hail days since 200662
Days with hail 1 inch or larger51
Tornadoes in the county7
Damaging wind reports in the county82

124 hail reports in Yankton County since 2006 on 62 days. The largest stones measured 2.75 in (baseball) on Jun 29, 2017.

Cities in Yankton County

Recent hail in Yankton County

DateHail sizeWhereSource
Aug 20, 20261 in
quarter		Lesterville
1 hail report		NWS storm report (preliminary)
Aug 11, 20261.5 in
ping pong ball		Menno, Irene
2 hail reports		NWS storm report (preliminary)
Jun 29, 20261 in
quarter		Napa, Mission Hill
2 hail reports		NOAA Storm Events
May 24, 20261.5 in
ping pong ball		Mayfield, Utica
2 hail reports		NOAA Storm Events
Jul 7, 20251.75 in
golf ball		Jamesville
1 hail report		NOAA Storm Events
Jun 29, 20251 in
quarter		Lesterville
1 hail report		NOAA Storm Events
Jun 28, 20251 in
quarter		Utica
1 hail report		NOAA Storm Events
Jun 27, 20250.75 in
penny		Yankton
1 hail report		NOAA Storm Events
Jun 16, 20251 in
quarter		Napa, Yankton, Utica
4 hail reports		NOAA Storm Events
Apr 18, 20251 in
quarter		Chan Gurney Airport
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 Yankton County by year

2064077085093102111221331421531651718192202162262324625426

When hail season peaks in Yankton County

JanFebMar4Apr9May25Jun8Jul12Aug4SepOctNovDec

Damaging thunderstorm winds in Yankton County

82 reports of damaging thunderstorm wind in Yankton County since 2006, on 45 days. The strongest measured gust was 98 mph on Jun 23, 2010.

DateStrongest gustWhereSource
Aug 12, 202652 mph, measuredYankton
1 wind report		NWS storm report (preliminary)
Jul 29, 202558 mph, measuredGayville
1 wind report		NOAA Storm Events
Jul 28, 202560 mph, measuredJamesville
1 wind report		NOAA Storm Events
Jul 15, 202566 mph, measuredNapa
1 wind report		NOAA Storm Events
Jul 7, 202568 mph, measuredChan Gurney Airport, Yankton, Gayville
3 wind reports		NOAA Storm Events
Jun 27, 202564 mph, measuredNapa
1 wind report		NOAA Storm Events
May 15, 202560 mph, measuredNapa
1 wind report		NOAA Storm Events
Mar 14, 202562 mph, measuredGayville
1 wind report		NOAA Storm Events
Jul 29, 202459 mph, measuredChan Gurney Airport
1 wind report		NOAA Storm Events
Jul 12, 202371 mph, measuredChan Gurney Airport, Yankton, Gayville
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 Yankton 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).