Hail History

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Hail history for Sioux County, IA

Last hail in the countySep 1, 20261 in (quarter)
Hail days, last 12 months4
Largest hail since 20062.5 in (tennis ball)Aug 18, 2022
Hail days since 200669
Days with hail 1 inch or larger50
Tornadoes in the county22
Damaging wind reports in the county132

143 hail reports in Sioux County since 2006 on 69 days. The largest stones measured 2.5 in (tennis ball) on Aug 18, 2022.

Cities in Sioux County

Recent hail in Sioux County

DateHail sizeWhereSource
Sep 1, 20261 in
quarter		Orange City, Sioux Center
2 hail reports		NWS storm report (preliminary)
Jun 28, 20261.5 in
ping pong ball		Hull, Rock Vly
3 hail reports		NOAA Storm Events
May 18, 20261 in
quarter		Chatsworth
1 hail report		NOAA Storm Events
May 17, 20260.75 in
penny		Rock Vly
1 hail report		NOAA Storm Events
Sep 21, 20251.75 in
golf ball		Lebanon, Maurice
2 hail reports		NOAA Storm Events
Jun 14, 20251 in
quarter		Hawarden
1 hail report		NOAA Storm Events
Jun 2, 20251.75 in
golf ball		Lebanon, Hull
5 hail reports		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 Sioux County by year

20660740880951021151213614115416217418119120321222423224325426

When hail season peaks in Sioux County

JanFeb2Mar2Apr13May22Jun14Jul11Aug5SepOctNovDec

Damaging thunderstorm winds in Sioux County

132 reports of damaging thunderstorm wind in Sioux County since 2006, on 63 days. The strongest measured gust was 99 mph on Jul 28, 2025.

DateStrongest gustWhereSource
Sep 1, 202681 mph, measuredHawarden, Hull
2 wind reports		NWS storm report (preliminary)
Jul 25, 202682 mph, measuredIreton, Hawarden, Maurice
3 wind reports		NWS storm report (preliminary)
Jul 2, 202659 mph, measuredSioux Center, Hospers, Ireton
4 wind reports		NWS storm report (preliminary)
Jul 1, 202666 mph, estimatedIreton, Maurice, Sioux Center
10 wind reports		NWS storm report (preliminary)
Jun 30, 202670 mph, estimatedGranville
1 wind report		NOAA Storm Events
Jun 29, 202675 mph, estimatedSioux Center
1 wind report		NOAA Storm Events
Jun 17, 202664 mph, estimatedRock Vly
1 wind report		NOAA Storm Events
Jul 28, 202599 mph, measuredSioux Center, Lebanon, Orange City
16 wind reports		NOAA Storm Events
Jun 29, 202570 mph, estimatedHospers, Maurice, Sioux Center
3 wind reports		NOAA Storm Events
Jun 2, 202585 mph, estimatedHospers
1 wind report		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 Sioux 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).