Allison Park Hail — Storm History & NOAA Data for Allison Park, PA

Data current as of 2026-10-16 · Sourced from NOAA Storm Events

Over the past five years, the National Oceanic and Atmospheric Administration has recorded 150 hail storms within 25 miles of Allison Park, PA. Of those, 94 produced hail at least quarter-size — the threshold most insurance carriers consider potentially damaging to asphalt shingles. The largest reported hail in this window was egg-sized, which can fracture shingle mat and dent metal flashing on contact. 2025 was the most active year on record locally, with 63 documented hail events.

Hail Severity Breakdown — Allison Park Area (Last 5 Years)

Allison Park Hail Storms by Year

2025 was the busiest hail year on record locally for Allison Park, with 63 documented events inside the 25-mile radius. Storm activity in Allison Park typically peaks in spring and early summer, when the jet stream pushes Gulf moisture into the area and supercell thunderstorms become more frequent.

Notable Recent Allison Park Hail Storms

• September 3, 2026 — Severe hail (ping pong ball-sized) reported near 1 SW Braddock. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Allison Park-area properties.
• May 13, 2026 — Significant hail (quarter-sized or larger) reported near FINLEYVILLE. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Allison Park-area properties.
• May 13, 2026 — Significant hail (quarter-sized or larger) reported near 1 W Finleyville. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Allison Park-area properties.
• April 14, 2026 — Significant hail (quarter-sized or larger) reported near HOLT. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Allison Park-area properties.
• April 14, 2026 — Significant hail (quarter-sized or larger) reported near 4 ESE Industry. This storm met the quarter-size insurance damage threshold and is a candidate date when filing a claim for Allison Park-area properties.

Recent Hail Events Near Allison Park

Wind Storm History — Allison Park Area (Last 5 Years)

NOAA has recorded 500 high-wind events within 25 miles of Allison Park, PA in the past five years. Of those, 498 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 90 mph.

Recent Wind Events Near Allison Park

Frequently Asked Questions About Allison Park Hail

When was the last major hail storm in Allison Park, PA?

The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of Allison Park was on September 3, 2026. HailCheck refreshes from the NOAA Storm Events database daily, so newer events appear here as they are reported.

How often does it hail in Allison Park?

Allison Park averages roughly 30 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 94 of the 150 events recorded over the last five years.

How big does hail typically get in Allison Park?

The largest documented hail near Allison Park in the last five years was egg-sized. Most Allison Park-area hail falls in the marble-to-quarter range, with destructive storms (egg-size or larger) appearing roughly once every few years.

Does my insurance cover hail damage in PA?

Most homeowners insurance policies in PA cover hail damage to roofs, siding, and gutters under the dwelling and other-structures coverage. Coverage typically requires the damage to be tied to a verifiable storm date — which is where the NOAA hail history above (and a HAAG-style test square validation) becomes important for the claim file.

How do I check hail history for a specific Allison Park address?

Use the HailCheck address search to enter any street address in or near Allison Park. HailCheck returns every NOAA hail event within a configurable radius, along with severity bands, dates, and storm narratives for Pro members.

What a HAAG-Style Test Square Validation Means in Allison Park

If your property in or near Allison Park took on hail during one of the storms above, the standard process for documenting damage is a 10×10 foot test square inspection. A HAAG-trained reviewer counts impact indicators — granule displacement, mat fractures, and bruising — within the marked square and produces a PASS or FAIL document for the claim file.

HailCheck offers a $99 photo-based HAAG-style test square validation. You submit photos from the field, our reviewer evaluates the impact indicators and cross-references the NOAA storm dates listed above, and a written PASS/FAIL determination is returned within one business day. We do not send anyone to the roof — the validation is built around the photos you submit.

Why Allison Park's Location Matters for Hail

Allison Park sits east of the traditional hail alley, where hail events are less frequent than the central plains but tend to be associated with strong squall lines and tropical systems. Local roof systems are less commonly hardened for hail, which can mean even moderate impacts produce claim-worthy damage.

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