Hail History

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Hail history for Mason City, IA

Last hail within 10 milesAug 7, 20261.5 in (ping pong ball)
Hail days, last 12 months1
Largest hail since 20061.75 in (golf ball)Oct 24, 2024
Hail days since 200642
Days with hail 1 inch or larger35
Tornadoes within 10 miles7
Damaging wind reports within 10 miles107

Hail has been reported within 10 miles of Mason City on 42 days since 2006. The largest stones measured 1.75 in (golf ball) on Oct 24, 2024. Hail is most common here in May and June.

Mason City ranks #361 for hail days among the 1,399 U.S. cities of 25,000 to 100,000 people. See the ranking →

Recent hail near Mason City

DateHail sizeWhereSource
Aug 7, 20261.5 in
ping pong ball		Manly
1 hail report · closest 9 mi from Mason City		NWS storm report (preliminary)
Jun 20, 20251 in
quarter		Mason City Muni
1 hail report · closest 10 mi from Mason City		NOAA Storm Events
Apr 28, 20250.88 in
nickel		Mason City, Mason City Muni
2 hail reports · closest 1 mi from Mason City		NOAA Storm Events
Oct 24, 20241.75 in
golf ball		Burchinal, Clear Lake, Mason City
6 hail reports · closest near the center of Mason City		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 Mason City by year

30607308109104113124131141531641771811922021122123124225126

When hail season peaks near Mason City

Of the 42 hail days since 2006, most fell in May (10) and June (9).

JanFeb4Mar5Apr10May9Jun6Jul4Aug2Sep2OctNovDec

Largest hail storms near Mason City

May 25, 2008 · 1.75 in (golf ball) · Mason City (2 mi from Mason City)

National Weather Service description (English): Dime to golf ball size hail nearly covered the ground.

Jun 14, 2011 · 1.75 in (golf ball) · Central Hgts (5 mi from Mason City)

May 31, 2013 · 1.75 in (golf ball) · Manly (9 mi from Mason City)

Jun 9, 2018 · 1.75 in (golf ball) · Nora Spgs (10 mi from Mason City)

National Weather Service description (English): Golf ball sized hail fell south of Nora Springs.

Aug 24, 2018 · 1.75 in (golf ball) · Clear Lake (9 mi from Mason City)

National Weather Service description (English): Local media relayed a public social media picture of large hail, estimated around golf ball in size. Time estimated from radar.

Tornadoes within 10 miles of Mason City

DateRatingWherePath
Jul 29, 2025EF0Clear Lake
8 mi from Mason City		1.6 mi long, 15 yd wide
Apr 12, 2022EF1Clear Lake Jct
3 mi from Mason City		4.5 mi long, 100 yd wide
Dec 15, 2021EF0Rock Falls
8 mi from Mason City		3.5 mi long, 60 yd wide
Jul 14, 2021EF0Rockwell
10 mi from Mason City		5.1 mi long, 225 yd wide
Jun 16, 2014EF1Mason City Muni
7 mi from Mason City		3.0 mi long, 110 yd wide
Jun 16, 2014EF0Freeman
5 mi from Mason City		1.1 mi long, 40 yd wide
Jun 7, 2008EF0Mason City Muni
9 mi from Mason City		1.0 mi long, 40 yd wide

Damaging thunderstorm winds near Mason City

107 reports of damaging thunderstorm wind within 10 miles of Mason City since 2006, on 54 days. The strongest measured gust was 83 mph on Dec 15, 2021.

DateStrongest gustWhereSource
Jul 20, 202665 mph, estimatedNora Springs, Rock Falls
2 wind reports		NWS storm report (preliminary)
Jul 2, 202672 mph, measuredMason City
2 wind reports		NWS storm report (preliminary)
May 17, 202670 mph, measuredNora Spgs
1 wind report		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
May 24, 202472 mph, measuredMason City Muni
1 wind report		NOAA Storm Events
May 21, 202470 mph, estimatedMason City
1 wind report		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
Apr 12, 202272 mph, measuredNora Spgs, Portland, Burchinal
3 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 Mason City; 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 Mason City.

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