Hail History

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Hail history for Willow Grove, PA

Last hail within 10 milesAug 20, 20260.75 in (penny)
Hail days, last 12 months2
Largest hail since 20061.75 in (golf ball)Mar 29, 2009
Hail days since 200624
Days with hail 1 inch or larger11
Tornadoes within 10 miles11
Damaging wind reports within 10 miles358

Hail has been reported within 10 miles of Willow Grove on 24 days since 2006. The largest stones measured 1.75 in (golf ball) on Mar 29, 2009. Hail is most common here in July and June.

Recent hail near Willow Grove

DateHail sizeWhereSource
Aug 20, 20260.75 in
penny		Plymouth Meeting
2 hail reports · closest 9 mi from Willow Grove		NWS storm report (preliminary)
Jul 27, 20260.5 in
marble		Chestnut Hill
1 hail report · closest 7 mi from Willow Grove		NWS storm report (preliminary)
May 3, 20251 in
quarter		Rockledge
1 hail report · closest 5 mi from Willow Grove		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 Willow Grove by year

206207108209102111121311415116217182191202212222324125226

When hail season peaks near Willow Grove

Of the 24 hail days since 2006, most fell in July (8) and June (6).

Jan1Feb1Mar1Apr2May6Jun8Jul5AugSepOctNovDec

Largest hail storms near Willow Grove

Mar 29, 2009 · 1.75 in (golf ball) · Torresdale (8 mi from Willow Grove)

National Weather Service description (English): Golf ball size hail was reported by a Skywarn spotter in the northeast section of Philadelphia. Northeast Philadelphia airport also had a measured wind gust of 47 mph. Dime size hail was also reported in Center City Philadelphia.

Jul 6, 2020 · 1.25 in (half dollar) · Shawmont (9 mi from Willow Grove)

Jul 21, 2021 · 1.25 in (half dollar) · Blue Bell (8 mi from Willow Grove)

Aug 26, 2006 · 1 in (quarter) · Warminster (4 mi from Willow Grove)

Jun 12, 2007 · 1 in (quarter) · Horsham (3 mi from Willow Grove)

Tornadoes within 10 miles of Willow Grove

DateRatingWherePath
Apr 1, 2023EF1Penns Park
10 mi from Willow Grove		3.9 mi long, 200 yd wide
Sep 1, 2021EF2Flourtown
7 mi from Willow Grove		8.3 mi long, 400 yd wide
Sep 1, 2021EF1Edison
9 mi from Willow Grove		4.3 mi long, 300 yd wide
Jul 29, 2021EF3Byberry
6 mi from Willow Grove		0.6 mi long, 530 yd wide
Jul 29, 2021EF0Bustleton
6 mi from Willow Grove		0.4 mi long, 40 yd wide
Jul 29, 2021EF3Belmont Hills
7 mi from Willow Grove		2.8 mi long, 530 yd wide
Nov 30, 2020EF0Montgomeryville Airport
9 mi from Willow Grove		0.9 mi long, 100 yd wide
Aug 4, 2020EF2Cornwells Hgts
9 mi from Willow Grove		0.1 mi long, 500 yd wide
Aug 4, 2020EF2Torresdale
9 mi from Willow Grove		3.8 mi long, 500 yd wide
Aug 4, 2020EF2Belmont Hills
6 mi from Willow Grove		16.9 mi long, 500 yd wide
May 18, 2011EF0Bustleton
6 mi from Willow Grove		0.1 mi long, 33 yd wide

Damaging thunderstorm winds near Willow Grove

358 reports of damaging thunderstorm wind within 10 miles of Willow Grove since 2006, on 136 days. The strongest measured gust was 72 mph on Jun 21, 2017.

DateStrongest gustWhereSource
Jul 18, 2026damage reportedEureka
1 wind report		NWS storm report (preliminary)
Jul 11, 2026damage reportedPlymouth Meeting
1 wind report		NWS storm report (preliminary)
Jul 4, 2026damage reportedWarminster, Village Shires
3 wind reports		NWS storm report (preliminary)
Jun 22, 202658 mph, estimatedTacony, Fox Chase, Cheltenham
6 wind reports		NOAA Storm Events
Jun 14, 202658 mph, estimatedRoxborough, Chestnut Hill, Chalfont
3 wind reports		NOAA Storm Events
Jun 11, 202658 mph, estimatedChestnut Hill
1 wind report		NOAA Storm Events
Jun 6, 202658 mph, estimatedCrescentville
1 wind report		NOAA Storm Events
May 20, 202663 mph, estimatedEdison
2 wind reports		NOAA Storm Events
Mar 16, 202658 mph, measuredTrevose, Ne Airport Philade
2 wind reports		NOAA Storm Events
Dec 19, 202560 mph, estimatedShawmont, Ne Airport Philade
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 Willow Grove; 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 Willow Grove.

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