Hail History

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Hail history for Okauchee Lake, WI

Last hail within 10 milesJul 27, 20261 in (quarter)
Hail days, last 12 months2
Largest hail since 20063 in (tea cup)Jun 7, 2008
Hail days since 200640
Days with hail 1 inch or larger27
Tornadoes within 10 miles7
Damaging wind reports within 10 miles94

Hail has been reported within 10 miles of Okauchee Lake on 40 days since 2006. The largest stones measured 3 in (tea cup) on Jun 7, 2008. Hail is most common here in June and May.

Recent hail near Okauchee Lake

DateHail sizeWhereSource
Jul 27, 20262.5 in
tennis ball		Oconomowoc, Lac La Belle, Delafield
5 hail reports · closest 3 mi from Okauchee Lake		NWS storm report (preliminary)
Apr 14, 20261.5 in
ping pong ball		Merton, Oconomowoc Lake, Hartland
3 hail reports · closest 5 mi from Okauchee Lake		NOAA Storm Events
May 15, 20252.5 in
tennis ball		Ixonia, Ashippun, Alderley
9 hail reports · closest 2 mi from Okauchee Lake		NOAA Storm Events
Apr 18, 20251 in
quarter		Lac La Belle
1 hail report · closest 4 mi from Okauchee Lake		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 Okauchee Lake by year

406407208092102113121131141151651711819120121322223324225226

When hail season peaks near Okauchee Lake

Of the 40 hail days since 2006, most fell in June (9) and May (9).

Jan1Feb2Mar4Apr9May9Jun6Jul3Aug6SepOctNovDec

Largest hail storms near Okauchee Lake

Jun 7, 2008 · 3 in (tea cup) · Hartland (5 mi from Okauchee Lake)

National Weather Service description (English): Hail size ranged from 0.75 to 3.00 inches in diameter.

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

National Weather Service description (English): Hail sizes ranging from 0.5 inch to larger than 2 inches in diameter and lasted about 20 minutes. Wind was generally from the west and south with strong gusts. Damage to vinyl siding and windows.

Jul 27, 2026 · 2.5 in (tennis ball) · Oconomowoc (4 mi from Okauchee Lake)

Apr 13, 2006 · 2 in (hen egg) · Concord (9 mi from Okauchee Lake)

May 11, 2011 · 2 in (hen egg) · Hartland (5 mi from Okauchee Lake)

Tornadoes within 10 miles of Okauchee Lake

DateRatingWherePath
Apr 14, 2026EF2Merton
8 mi from Okauchee Lake		3.8 mi long, 150 yd wide
Oct 12, 2022EF0Nashotah
3 mi from Okauchee Lake		0.6 mi long, 50 yd wide
Jul 29, 2021EF1Sullivan
9 mi from Okauchee Lake		1.9 mi long, 150 yd wide
Jul 29, 2021EF1Utica
9 mi from Okauchee Lake		2.7 mi long, 150 yd wide
Jul 29, 2021EF1Utica
7 mi from Okauchee Lake		1.0 mi long, 75 yd wide
Jul 29, 2021EF0Lapham Peak State Park
8 mi from Okauchee Lake		2.4 mi long, 50 yd wide
May 9, 2018EF0Holy Hill
8 mi from Okauchee Lake		5.2 mi long, 50 yd wide

Damaging thunderstorm winds near Okauchee Lake

94 reports of damaging thunderstorm wind within 10 miles of Okauchee Lake since 2006, on 61 days. The strongest measured gust was 77 mph on Aug 10, 2021.

DateStrongest gustWhereSource
Aug 18, 2026damage reportedSussex
1 wind report		NWS storm report (preliminary)
Jul 2, 2026damage reportedHartland
1 wind report		NWS storm report (preliminary)
Apr 14, 202681 mph, estimatedOconomowoc Lake, Holy Hill
2 wind reports		NOAA Storm Events
Sep 22, 202558 mph, estimatedIxonia, Delafield
2 wind reports		NOAA Storm Events
Aug 12, 202564 mph, estimatedDelafield
1 wind report		NOAA Storm Events
May 16, 202566 mph, measuredSummit Corners, Oconomowoc Lake
2 wind reports		NOAA Storm Events
Mar 15, 202567 mph, measuredSummit Corners, Concord, Oconomowoc
3 wind reports		NOAA Storm Events
Aug 27, 202458 mph, estimatedOconomowoc, Delafield
2 wind reports		NOAA Storm Events
Jun 17, 202470 mph, estimatedSummit Corners, Plat
2 wind reports		NOAA Storm Events
May 21, 202464 mph, estimatedWales
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 Okauchee Lake; 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 Okauchee Lake.

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