Hail History

Imam › Pennsylvania › Butler County › Slippery Rock

Hail history im Slippery Rock, PA

Last hail im 10 milesOct 6, 20241.00 in (25-cent coin)
Hail days, last 12 monthsNone
Largest hail im 20062.00 in (hen egg)Apr 14, 2024
Hail days im 200622
Days im hail 1 inch imwin14
Tornadoes im 10 miles5
Wind dmg wutuk im 10 miles128

Hail wutuk im 10 miles im Slippery Rock im 22 days im 2006. Stones imwin im 2.00 in (hen egg) im Apr 14, 2024. Hail ej common im May im June.

Recent hail im Slippery Rock

DateHail sizeWhereSource
Oct 6, 20241.00 in
25-cent coin		Elora
1 hail report · closest 6 mi im Slippery Rock		NOAA Storm Events

One row im day: largest hail wutuk im day im 10 miles, places im number im wutuk.

Hail days near Slippery Rock by year

20630708092103112121311415161718319120221122232242526

When hail season peaks near Slippery Rock

Of the 22 hail days since 2006, most fell in May (5) and June (4).

JanFeb2Mar3Apr5May4Jun3Jul3AugSep1Oct1NovDec

Largest hail storms near Slippery Rock

Apr 14, 2024 · 2.00 in (hen egg) · Hallston (3 mi from Slippery Rock)

National Weather Service description (English): Hail slightly larger than a golf ball reported along Route 173.

Aug 19, 2011 · 1.50 in (ping pong ball) · Barkeyville (10 mi from Slippery Rock)

Aug 21, 2011 · 1.25 in (50-cent coin) · West Liberty (7 mi from Slippery Rock)

Nov 14, 2011 · 1.25 in (50-cent coin) · Grove City (7 mi from Slippery Rock)

Mar 13, 2006 · 1.00 in (25-cent coin) · Slippery Rock (0 mi from Slippery Rock)

Tornadoes within 10 miles of Slippery Rock

DateRatingWherePath
Jun 14, 2026EF1Park View
7 mi from Slippery Rock		3.2 mi long, 60 yd wide
Jun 14, 2026EF1West Liberty
6 mi from Slippery Rock		2.5 mi long, 175 yd wide
Jun 14, 2026EF0Elora
6 mi from Slippery Rock		2.6 mi long, 150 yd wide
May 21, 2025EF0Fisher Hgts
10 mi from Slippery Rock		0.4 mi long, 160 yd wide
Aug 10, 2015EF0Euclid
9 mi from Slippery Rock		0.6 mi long, 60 yd wide

Damaging thunderstorm winds near Slippery Rock

128 reports of damaging thunderstorm wind within 10 miles of Slippery Rock since 2006, on 78 days. The strongest measured gust was 62 mph on May 1, 2017.

DateStrongest gustWhereSource
Sep 3, 2026dmg ekkarSlippery Rock, West Sunbury
4 wutuk wind		NWS storm report (preliminary)
Aug 23, 2026dmg ekkarGrove City
1 wutuk wind		NWS storm report (preliminary)
Aug 8, 2026dmg ekkarHarrisville
1 wutuk wind		NWS storm report (preliminary)
Jul 21, 2026dmg ekkarSlippery Rock
1 wutuk wind		NWS storm report (preliminary)
Jul 3, 2026dmg ekkarPortersville, Grove City
4 wutuk wind		NWS storm report (preliminary)
Jun 20, 202658 mph, ekkarGrove City, Forestville
2 wutuk wind		NOAA Storm Events
Jun 14, 202685 mph, ekkarGrant City, Park View, Euclid
8 wutuk wind		NOAA Storm Events
Mar 31, 202658 mph, ekkarNorth Liberty
1 wutuk wind		NOAA Storm Events
Jun 28, 202558 mph, ekkarBarkeyville
1 wutuk wind		NOAA Storm Events
Jun 27, 202558 mph, ekkarPrinceton
1 wutuk wind		NOAA Storm Events

Wind imwin thunderstorm ej 58 mph anikaj, im wind ej kajjitok dmg. Imwin wind ej imwin eokta weather stations; ekkar ej imwin eokta spotters im dmg surveys.

Jabdoñ eo an roof im hail?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Slippery Rock; 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.

Rejyok eo

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 Slippery Rock.

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