Hail History

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Hail history for Delafield, 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 200647
Days with hail 1 inch or larger31
Tornadoes within 10 miles9
Damaging wind reports within 10 miles122

Hail has been reported within 10 miles of Delafield on 47 days since 2006. The largest stones measured 3 in (tea cup) on Jun 7, 2008. Hail is most common here in May and June.

Recent hail near Delafield

DateHail sizeWhereSource
Jul 27, 20262.5 in
tennis ball		Oconomowoc, Lac La Belle, Delafield
5 hail reports · closest near the center of Delafield		NWS storm report (preliminary)
Apr 14, 20261.5 in
ping pong ball		Merton, Oconomowoc Lake, Hartland
3 hail reports · closest 4 mi from Delafield		NOAA Storm Events
May 15, 20251.5 in
ping pong ball		Dousman, Lac La Belle, Utica
5 hail reports · closest 3 mi from Delafield		NOAA Storm Events
Apr 18, 20252 in
hen egg		North Prairie, Saylesville, Bethesda
8 hail reports · closest 8 mi from Delafield		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 Delafield by year

5064073081092102114122131142151651711819120121322223424225226

When hail season peaks near Delafield

Of the 47 hail days since 2006, most fell in May (10) and June (8).

Jan2Feb2Mar5Apr10May8Jun8Jul5Aug7SepOctNovDec

Largest hail storms near Delafield

Jun 7, 2008 · 3 in (tea cup) · Hartland (2 mi from Delafield)

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

Jul 27, 2026 · 2.5 in (tennis ball) · Oconomowoc (6 mi from Delafield)

Apr 13, 2006 · 2 in (hen egg) · Concord (10 mi from Delafield)

May 11, 2011 · 2 in (hen egg) · Hartland (4 mi from Delafield)

Apr 18, 2025 · 2 in (hen egg) · North Prairie (8 mi from Delafield)

National Weather Service description (English): Hail ranged from nickel sized to lime sized in the first round, then nickel to quarter sized hail in a second round.

Tornadoes within 10 miles of Delafield

DateRatingWherePath
Apr 14, 2026EF2Merton
9 mi from Delafield		3.8 mi long, 150 yd wide
Oct 12, 2022EF0Nashotah
3 mi from Delafield		0.6 mi long, 50 yd wide
Jul 29, 2021EF1Bethesda
7 mi from Delafield		0.9 mi long, 95 yd wide
Jul 29, 2021EF1Sullivan
8 mi from Delafield		1.9 mi long, 150 yd wide
Jul 29, 2021EF1Utica
8 mi from Delafield		2.7 mi long, 150 yd wide
Jul 29, 2021EF1Utica
5 mi from Delafield		1.0 mi long, 75 yd wide
Jul 29, 2021EF0Lapham Peak State Park
4 mi from Delafield		2.4 mi long, 50 yd wide
Oct 1, 2019EF1Utica
9 mi from Delafield		8.5 mi long, 100 yd wide
Aug 18, 2015EF0Bethesda
9 mi from Delafield		0.6 mi long, 25 yd wide

Damaging thunderstorm winds near Delafield

122 reports of damaging thunderstorm wind within 10 miles of Delafield since 2006, on 77 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 27, 202662 mph, measuredNorth Prairie
1 wind report		NWS storm report (preliminary)
Jul 2, 2026damage reportedHartland, Pewaukee
2 wind reports		NWS storm report (preliminary)
Apr 14, 202681 mph, estimatedOconomowoc Lake
1 wind report		NOAA Storm Events
Sep 22, 202558 mph, estimatedDelafield
1 wind report		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
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 Delafield; 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 Delafield.

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