Hail History

Home › Wisconsin › Jefferson County › Watertown

Hail history for Watertown, WI

Last hail within 10 milesApr 14, 20261 in (quarter)
Hail days, last 12 months1
Largest hail since 20062.75 in (baseball)Apr 14, 2026
Hail days since 200632
Days with hail 1 inch or larger20
Tornadoes within 10 miles8
Damaging wind reports within 10 miles34

Hail has been reported within 10 miles of Watertown on 32 days since 2006. The largest stones measured 2.75 in (baseball) on Apr 14, 2026. Hail is most common here in April and May.

Recent hail near Watertown

DateHail sizeWhereSource
Apr 14, 20262.75 in
baseball		Watertown Airport, Grellton, Watertown
7 hail reports · closest near the center of Watertown		NOAA Storm Events
May 15, 20252.5 in
tennis ball		Ixonia, Ixonia Airport
2 hail reports · closest 8 mi from Watertown		NOAA Storm Events
Apr 18, 20251.75 in
golf ball		Milford, Watertown Airport, Hoopers
5 hail reports · closest 1 mi from Watertown		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 Watertown by year

506207308091104111121321411516317118192022112232324225126

When hail season peaks near Watertown

Of the 32 hail days since 2006, most fell in April (10) and May (7).

JanFeb1Mar10Apr7May5Jun4Jul1Aug1Sep3OctNovDec

Largest hail storms near Watertown

May 11, 2011 · 2.75 in (baseball) · Johnson Creek (8 mi from Watertown)

National Weather Service description (English): Report from the public of baseball-sized hail that broke windows on homes and vehicles.

Apr 14, 2026 · 2.75 in (baseball) · Watertown Airport (3 mi from Watertown)

National Weather Service description (English): Trained spotter reports 2.75 inch diameter hail southeast of Watertown.

Apr 13, 2006 · 2.5 in (tennis ball) · Johnson Creek (8 mi from Watertown)

National Weather Service description (English): Hail sizes ranged from 1.00 to 2.50 inches in diameter.

May 15, 2025 · 2.5 in (tennis ball) · Ixonia (8 mi from Watertown)

Aug 24, 2006 · 1.75 in (golf ball) · Oxford (7 mi from Watertown)

Tornadoes within 10 miles of Watertown

DateRatingWherePath
Jul 16, 2025EF0Hustisford
10 mi from Watertown		3.0 mi long, 50 yd wide
Jun 22, 2024EF1Hubbleton
6 mi from Watertown		2.0 mi long, 150 yd wide
Oct 12, 2022EF0Grellton
4 mi from Watertown		0.5 mi long, 25 yd wide
Oct 12, 2022EF0Aztalan
9 mi from Watertown		0.4 mi long, 25 yd wide
Jul 29, 2021EF0Grellton
4 mi from Watertown		6.0 mi long, 100 yd wide
Jul 29, 2021EF1Pipersville
6 mi from Watertown		7.7 mi long, 200 yd wide
Jul 29, 2021EF0Grellton
6 mi from Watertown		3.6 mi long, 25 yd wide
Jun 7, 2008EF0Aztalan
10 mi from Watertown		0.1 mi long, 50 yd wide

Damaging thunderstorm winds near Watertown

34 reports of damaging thunderstorm wind within 10 miles of Watertown since 2006, on 27 days. The strongest measured gust was 63 mph on Jun 14, 2017.

DateStrongest gustWhereSource
Jul 2, 202655 mph, measuredWatertown, Clyman
2 wind reports		NWS storm report (preliminary)
Jun 10, 202660 mph, measuredWatertown Airport, Reeseville
2 wind reports		NOAA Storm Events
Apr 17, 202664 mph, estimatedRichwood
1 wind report		NOAA Storm Events
Sep 22, 202558 mph, estimatedIxonia
1 wind report		NOAA Storm Events
Mar 15, 202563 mph, estimatedHubbleton
3 wind reports		NOAA Storm Events
Jul 28, 202358 mph, estimatedPipersville
1 wind report		NOAA Storm Events
Oct 12, 202258 mph, estimatedJohnson Creek
1 wind report		NOAA Storm Events
Jul 23, 202258 mph, estimatedOak Grove
1 wind report		NOAA Storm Events
Aug 7, 202160 mph, measuredWatertown, Watertown Airport
2 wind reports		NOAA Storm Events
Jul 9, 202058 mph, estimatedWatertown
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 Watertown; 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 Watertown.

Run a roofing company or a local news site? Show Watertown'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 Watertown with our hail alerts ($29 a month) →