Hail History

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Hail history for Black Hawk County, IA

Last hail in the countyAug 7, 20261.25 in (half dollar)
Hail days, last 12 months1
Largest hail since 20064.5 in (softball)Jul 16, 2007
Hail days since 200645
Days with hail 1 inch or larger32
Tornadoes in the county8
Damaging wind reports in the county165

163 hail reports in Black Hawk County since 2006 on 45 days. The largest stones measured 4.5 in (softball) on Jul 16, 2007.

Cities in Black Hawk County

Recent hail in Black Hawk County

DateHail sizeWhereSource
Aug 7, 20261.25 in
half dollar		Readlyn, Dunkerton
2 hail reports		NWS storm report (preliminary)
Sep 16, 20251.25 in
half dollar		Waterloo, Evansdale, La Porte City Airport
5 hail reports		NOAA Storm Events
Sep 15, 20251.25 in
half dollar		La Porte City Airport
1 hail report		NOAA Storm Events
Apr 23, 20250.88 in
nickel		Farmer
1 hail report		NOAA Storm Events
Mar 19, 20250.88 in
nickel		Evansdale
1 hail report		NOAA Storm Events
Oct 24, 20240.75 in
penny		Evansdale
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 Black Hawk County by year

50640730810931021111241321415164171811932021222123424425126

When hail season peaks in Black Hawk County

JanFeb4Mar8Apr9May8Jun7Jul2Aug4Sep3OctNovDec

Damaging thunderstorm winds in Black Hawk County

165 reports of damaging thunderstorm wind in Black Hawk County since 2006, on 67 days. The strongest measured gust was 93 mph on May 25, 2008.

DateStrongest gustWhereSource
Aug 7, 2026damage reportedHudson
1 wind report		NWS storm report (preliminary)
Jul 26, 202666 mph, measuredWaterloo Regional Airpo
2 wind reports		NWS storm report (preliminary)
Jul 20, 202660 mph, measuredVoorhies, Cedar Falls
2 wind reports		NWS storm report (preliminary)
Sep 16, 202558 mph, measuredWaterloo Muni Airport
1 wind report		NOAA Storm Events
Aug 15, 202572 mph, measuredLa Porte City
1 wind report		NOAA Storm Events
Jul 30, 202564 mph, measuredEvansdale, Raymond, Orange
3 wind reports		NOAA Storm Events
Jul 29, 202581 mph, estimatedWaterloo, Waterloo Muni Airport
2 wind reports		NOAA Storm Events
Jul 28, 202559 mph, measuredWaterloo Muni Airport
1 wind report		NOAA Storm Events
Jun 11, 202569 mph, estimatedWaterloo, La Porte City, Cedar Falls Airport
9 wind reports		NOAA Storm Events
Apr 28, 202558 mph, estimatedCedar Falls
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 Black Hawk 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).