Hail History

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Hail history for Cerro Gordo County, IA

Last hail in the countyAug 7, 20261 in (quarter)
Hail days, last 12 months1
Largest hail since 20061.75 in (golf ball)Oct 24, 2024
Hail days since 200648
Days with hail 1 inch or larger41
Tornadoes in the county13
Damaging wind reports in the county124

103 hail reports in Cerro Gordo County since 2006 on 48 days. The largest stones measured 1.75 in (golf ball) on Oct 24, 2024.

Cities in Cerro Gordo County

Recent hail in Cerro Gordo County

DateHail sizeWhereSource
Aug 7, 20261 in
quarter		Thornton
1 hail report		NWS storm report (preliminary)
Sep 16, 20251 in
quarter		Swaledale
1 hail report		NOAA Storm Events
Jun 20, 20251 in
quarter		Mason City Muni
1 hail report		NOAA Storm Events
Apr 28, 20251 in
quarter		Ventura, Mason City, Mason City Muni
3 hail reports		NOAA Storm Events
Oct 24, 20241.75 in
golf ball		Burchinal, Clear Lake, Mason City
6 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 Cerro Gordo County by year

3060730810941031131251311411531641751811932021122223124325126

When hail season peaks in Cerro Gordo County

JanFeb3Mar7Apr9May9Jun8Jul5Aug5Sep2OctNovDec

Damaging thunderstorm winds in Cerro Gordo County

124 reports of damaging thunderstorm wind in Cerro Gordo County since 2006, on 62 days. The strongest measured gust was 83 mph on Dec 15, 2021.

DateStrongest gustWhereSource
Jul 20, 2026damage reportedRock Falls
1 wind report		NWS storm report (preliminary)
Jul 2, 202672 mph, measuredMason City
2 wind reports		NWS storm report (preliminary)
Jul 29, 202570 mph, estimatedVentura
2 wind reports		NOAA Storm Events
Jul 27, 202571 mph, measuredMason City Muni, Mason City, Rock Falls
3 wind reports		NOAA Storm Events
Jun 20, 202559 mph, measuredMason City Muni
1 wind report		NOAA Storm Events
Jul 4, 202458 mph, estimatedVentura, Clear Lake
2 wind reports		NOAA Storm Events
May 24, 202472 mph, measuredMason City Muni
1 wind report		NOAA Storm Events
May 21, 202470 mph, estimatedRockwell, Mason City
2 wind reports		NOAA Storm Events
Jul 23, 202259 mph, measuredMason City Muni
1 wind report		NOAA Storm Events
Jul 5, 202268 mph, measuredMason City Muni
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 Cerro Gordo 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).