Hail History

Home › Wisconsin › Walworth County › Walworth

Hail history for Walworth, WI

Last hail within 10 milesAug 9, 20261 in (quarter)
Hail days, last 12 months2
Largest hail since 20062.5 in (tennis ball)May 2, 2018
Hail days since 200625
Days with hail 1 inch or larger13
Tornadoes within 10 miles24
Damaging wind reports within 10 miles108

Hail has been reported within 10 miles of Walworth on 25 days since 2006. The largest stones measured 2.5 in (tennis ball) on May 2, 2018. Hail is most common here in June and August.

Recent hail near Walworth

DateHail sizeWhereSource
Aug 9, 20261.25 in
half dollar		Lake Geneva, Fontana-on-Geneva
3 hail reports · closest 3 mi from Walworth		NWS storm report (preliminary)
Apr 15, 20261 in
quarter		Big Foot, Elkhorn Airport
2 hail reports · closest 4 mi from Walworth		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 Walworth by year

306107508091101111123131141516117118219120121221232425226

When hail season peaks near Walworth

Of the 25 hail days since 2006, most fell in June (6) and August (4).

1JanFeb2Mar3Apr3May6Jun2Jul4Aug3Sep1OctNovDec

Largest hail storms near Walworth

May 2, 2018 · 2.5 in (tennis ball) · Williams Bay (3 mi from Walworth)

National Weather Service description (English): Wind driven ping pong size hail broke a window on the 90 foot dome of the Yerkes Observatory.

Aug 30, 2013 · 1.5 in (ping pong ball) · Delavan (7 mi from Walworth)

Sep 7, 2021 · 1.5 in (ping pong ball) · Harvard (8 mi from Walworth)

Aug 9, 2026 · 1.25 in (half dollar) · Lake Geneva (7 mi from Walworth)

Aug 25, 2006 · 1 in (quarter) · Fontana (2 mi from Walworth)

Tornadoes within 10 miles of Walworth

DateRatingWherePath
Apr 17, 2026EF1Darien
10 mi from Walworth		2.8 mi long, 75 yd wide
Apr 17, 2026EF1Delavan
9 mi from Walworth		2.7 mi long, 75 yd wide
Jun 22, 2024EF1Delavan Airport
6 mi from Walworth		6.0 mi long, 150 yd wide
Jun 22, 2024EF1Linton
4 mi from Walworth		5.3 mi long, 100 yd wide
May 7, 2024EF0Chemung
7 mi from Walworth		3.8 mi long, 50 yd wide
May 7, 2024EF0Walworth Big Foot Airport
3 mi from Walworth		5.2 mi long, 50 yd wide
May 7, 2024EF1Darien
7 mi from Walworth		1.0 mi long, 50 yd wide
Jun 1, 2023EF?Walworth Big Foot Airport
5 mi from Walworth		0.0 mi long, 10 yd wide
Mar 31, 2023EF1Sharon
7 mi from Walworth		3.8 mi long, 300 yd wide
Mar 31, 2023EF0Sharon
6 mi from Walworth		10.6 mi long, 100 yd wide
Mar 31, 2023EF0Walworth
3 mi from Walworth		7.0 mi long, 50 yd wide
Mar 31, 2023EF0Como
7 mi from Walworth		6.0 mi long, 150 yd wide

Damaging thunderstorm winds near Walworth

108 reports of damaging thunderstorm wind within 10 miles of Walworth since 2006, on 66 days. The strongest measured gust was 74 mph on Aug 9, 2009.

DateStrongest gustWhereSource
Jul 3, 2026100 mph, estimatedDarien, Sharon, Delavan Lake
6 wind reports		NWS storm report (preliminary)
Jun 11, 202658 mph, estimatedFontana
1 wind report		NOAA Storm Events
Apr 17, 202663 mph, measuredAlden
1 wind report		NOAA Storm Events
Apr 14, 202672 mph, measuredHarvard
2 wind reports		NOAA Storm Events
Jun 3, 202564 mph, measuredDacy Airport, Harvard, Walworth Big Foot Airport
6 wind reports		NOAA Storm Events
Mar 15, 202564 mph, estimatedHebron, Walworth Big Foot Airport
2 wind reports		NOAA Storm Events
Mar 14, 202563 mph, measuredWalworth Big Foot Airport
1 wind report		NOAA Storm Events
Aug 6, 202460 mph, estimatedAlden
1 wind report		NOAA Storm Events
Jun 22, 202460 mph, estimatedHebron
1 wind report		NOAA Storm Events
May 22, 202458 mph, estimatedElkhorn Airport
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 Walworth; 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 Walworth.

Run a roofing company or a local news site? Show Walworth's hail history on your website with our free widget →

Roofing or restoration company? Get an email within the hour when hail is reported near Walworth with our hail alerts ($29 a month) →