Hail History

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Hail history for Grundy, IA

Last hail within 10 milesSep 22, 20251 in (quarter)
Hail days, last 12 monthsNone
Largest hail since 20062.5 in (tennis ball)Aug 9, 2009
Hail days since 200622
Days with hail 1 inch or larger16
Tornadoes within 10 miles7
Damaging wind reports within 10 miles45

Hail has been reported within 10 miles of Grundy on 22 days since 2006. The largest stones measured 2.5 in (tennis ball) on Aug 9, 2009. Hail is most common here in April and June.

Recent hail near Grundy

DateHail sizeWhereSource
Sep 22, 20251 in
quarter		Dike
1 hail report · closest 9 mi from Grundy		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 Grundy by year

206107082092101111211321411516117318119202122212312412526

When hail season peaks near Grundy

Of the 22 hail days since 2006, most fell in April (6) and June (5).

JanFeb1Mar6Apr4May5Jun1Jul4Aug1SepOctNovDec

Largest hail storms near Grundy

Aug 9, 2009 · 2.5 in (tennis ball) · Wellsburg (9 mi from Grundy)

Apr 13, 2006 · 1.75 in (golf ball) · Ackley (0 mi from Grundy)

Apr 6, 2010 · 1.75 in (golf ball) · Dike (10 mi from Grundy)

Jun 8, 2011 · 1.75 in (golf ball) · Lincoln (10 mi from Grundy)

Aug 19, 2022 · 1.5 in (ping pong ball) · Holland (3 mi from Grundy)

Tornadoes within 10 miles of Grundy

DateRatingWherePath
Aug 18, 2025EF?Holland
6 mi from Grundy		4.5 mi long, 50 yd wide
Aug 18, 2025EF?Fern
10 mi from Grundy		0.6 mi long, 35 yd wide
Nov 28, 2016EF0Grundy Center Airport
4 mi from Grundy		1.5 mi long, 25 yd wide
Jul 6, 2014EF1Reinbeck
7 mi from Grundy		3.2 mi long, 100 yd wide
Jun 29, 2014EF1Morrison
4 mi from Grundy		1.9 mi long, 50 yd wide
Jun 21, 2009EF1Wellsburg
6 mi from Grundy		2.1 mi long, 70 yd wide
Jun 21, 2009EF1Dike
9 mi from Grundy		2.3 mi long, 90 yd wide

Damaging thunderstorm winds near Grundy

45 reports of damaging thunderstorm wind within 10 miles of Grundy since 2006, on 28 days. The strongest measured gust was 71 mph on Mar 14, 2025.

DateStrongest gustWhereSource
Jul 20, 2026damage reportedHolland, Dike
2 wind reports		NWS storm report (preliminary)
Jul 3, 202560 mph, measuredGrundy Center
2 wind reports		NOAA Storm Events
Jun 20, 202560 mph, estimatedReinbeck
1 wind report		NOAA Storm Events
Jun 11, 202558 mph, measuredMorrison
1 wind report		NOAA Storm Events
Mar 14, 202571 mph, measuredGrundy Center
1 wind report		NOAA Storm Events
May 24, 202458 mph, estimatedWellsburg
1 wind report		NOAA Storm Events
May 8, 202458 mph, estimatedReinbeck
1 wind report		NOAA Storm Events
Aug 10, 202070 mph, estimatedReinbeck, Grundy Center
2 wind reports		NOAA Storm Events
Jun 4, 202060 mph, estimatedReinbeck
1 wind report		NOAA Storm Events
May 17, 201770 mph, estimatedHolland, Grundy Center
2 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 Grundy; 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 Grundy.

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