Hail History

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Hail history for Waterloo, IA

Last hail within 10 milesSep 16, 20251.25 in (half dollar)
Hail days, last 12 monthsNone
Largest hail since 20064.25 inJul 16, 2007
Hail days since 200636
Days with hail 1 inch or larger24
Tornadoes within 10 miles5
Damaging wind reports within 10 miles141

Hail has been reported within 10 miles of Waterloo on 36 days since 2006. The largest stones measured 4.25 in on Jul 16, 2007. Hail is most common here in April and May.

Waterloo ranks #467 for hail days among the 1,399 U.S. cities of 25,000 to 100,000 people. See the ranking →

Recent hail near Waterloo

DateHail sizeWhereSource
Sep 16, 20251.25 in
half dollar		Waterloo, Evansdale
4 hail reports · closest near the center of Waterloo		NOAA Storm Events
Mar 19, 20250.88 in
nickel		Evansdale
1 hail report · closest 4 mi from Waterloo		NOAA Storm Events
Oct 24, 20240.75 in
penny		Evansdale
1 hail report · closest 3 mi from Waterloo		NOAA Storm Events

One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.

Hail days near Waterloo by year

506407308109310211123132141516317181192202122212322422526

When hail season peaks near Waterloo

Of the 36 hail days since 2006, most fell in April (7) and May (7).

JanFeb4Mar7Apr7May6Jun6Jul1Aug2Sep3OctNovDec

Largest hail storms near Waterloo

Jul 16, 2007 · 4.25 in · Hudson (6 mi from Waterloo)

May 25, 2008 · 4 in (grapefruit) · Boies (9 mi from Waterloo)

National Weather Service description (English): Baseball to softball size hail was reported 7 miles north of Waterloo.

Apr 6, 2010 · 3.5 in · Cedar Falls (6 mi from Waterloo)

National Weather Service description (English): The ground was covered by 1 to 3.5 inch diameter hail.

Jun 25, 2023 · 3 in (tea cup) · Evansdale (4 mi from Waterloo)

National Weather Service description (English): Trained spotter reported baseball and larger hail.

Apr 13, 2006 · 2.5 in (tennis ball) · Traer (10 mi from Waterloo)

Tornadoes within 10 miles of Waterloo

DateRatingWherePath
Mar 28, 2020EF0Orange
6 mi from Waterloo		2.1 mi long, 115 yd wide
Mar 28, 2020EF?Evansdale
2 mi from Waterloo		0.3 mi long, 20 yd wide
Oct 9, 2018EF0Boies
9 mi from Waterloo		1.5 mi long, 50 yd wide
Aug 31, 2014EF0Boies
7 mi from Waterloo		3.2 mi long, 80 yd wide
Jun 21, 2007EF0Castle Hill
3 mi from Waterloo		0.1 mi long, 30 yd wide

Damaging thunderstorm winds near Waterloo

141 reports of damaging thunderstorm wind within 10 miles of Waterloo since 2006, on 60 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, 2026damage reportedCedar Falls
1 wind report		NWS storm report (preliminary)
Sep 16, 202558 mph, measuredWaterloo Muni Airport
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, Cedar Falls Airport, Raymond
7 wind reports		NOAA Storm Events
Apr 28, 202558 mph, estimatedCedar Falls
1 wind report		NOAA Storm Events
Mar 14, 202574 mph, measuredOrange
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 Waterloo; 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.

Nearby cities

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Waterloo.

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