Hail history for Westmoreland County, PA

Westmoreland County has 291 recorded hail events in the NOAA Storm Events Database — 154 of them 1″ or larger and 6 at 2″ or larger. The largest on record: 2.5″ (tennis ball) on April 14, 1984.

Records 1950–present Data through April 2026 Peak month June

Core sample · every recorded event, 1955–2026

Mark size = measured hail diameter; slivers are events with no recorded size. Amber ≥2″, red ≥2.75″ (baseball class). Denser recent decades partly reflect better reporting, not only more storms.

Recorded events 291 since 1962

1″ or larger 154 NWS severe threshold

2″ or larger 6 hen egg class and up

Largest recorded 2.5″ tennis ball · April 14, 1984

Read the record honestly: Storm Events contains what was reported to the National Weather Service. Sparse or rural counties under-report, and coverage improved sharply after the mid-1990s — a quiet-looking stretch is not proof nothing fell.

When it hails in Westmoreland County

Recorded events by month, 1950–present. The amber bar marks Westmoreland County's peak: June.

Most recent recorded events

Latest 8 of 291 recorded events · data through April 2026
Date	Size	Comparable to
May 4, 2025	1.0″	Quarter
April 2, 2025	0.75″	Penny
April 2, 2025	0.75″	Penny
March 16, 2025	0.75″	Penny
March 16, 2025	1.75″	Golf ball
March 16, 2025	1.25″	Half dollar
March 16, 2025	1.75″	Golf ball
March 16, 2025	1.0″	Quarter

Looking for a specific storm? Use the did-it-hail date lookup for Westmoreland County.

From the storm reports

Narratives as filed with the NOAA Storm Events Database (public records; lightly trimmed for length).

August 12, 2023 · 1.25″ (half dollar)

Half dollar sized hail reported near Merwin, PA.

August 4, 2022 · 1.5″ (ping-pong ball)

A trained spotter reported ping pong sized hail.

July 15, 1995 · 1.75″ (golf ball)

Golf ball-size hail fell in Irwin.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	2	9	18	35	66	122	39

The climb across decades is largely a reporting story: spotter networks, radar, and digital filing pulled far more storms into the record after the 1990s.

Questions about hail in Westmoreland County

Has it ever hailed in Westmoreland County?

Yes — 291 hail events have been recorded for Westmoreland County, PA in the NOAA Storm Events Database since 1962, including 154 of 1″ (quarter size) or larger.

When did it last hail in Westmoreland County?

The most recent recorded hail event for Westmoreland County, PA is May 4, 2025, with 1.0″ (quarter) hail. The database is currently updated through April 2026, so a storm from the last few weeks may not appear yet. To check a specific day, use the did-it-hail date lookup.

What is the largest hail ever recorded in Westmoreland County?

2.5″ (tennis ball), recorded on April 14, 1984. Hail that size meets or exceeds the National Weather Service severe threshold. See how big that really is on the actual-size hail chart.

Does a recorded hail event mean my roof was damaged?

No. This page reports storm records, not damage. Hail size and damage vary block by block within a county, and only an inspection can establish what happened to a specific roof. If you suspect damage, talk to your insurer or a licensed roofer — they can pull the same NOAA records for your claim.

More Pennsylvania hail history

All 67 Pennsylvania counties, ranked by recorded hail →

Source: NOAA/NCEI Storm Events Database, public domain, updated monthly by NCEI — this site's copy runs through April 2026. HailHistory reports records; it does not give insurance advice or assess damage.