Hail History

Hail history for Allison Park, Pennsylvania

NOAA hail reports in and within about 5 km (3 miles) of Allison Park since 1979, with preliminary reports to November 3, 2026.

Readout · Allison Park

Last hail
Apr 2, 2025
0.75 in, penny size
Hail days, last 5 years
1
since Nov 3, 2021 · 4 reports
Largest ever
1.75 in
golf ball · Jun 12, 2003

10 reports on 7 days since 1979 · #88 of 108 Pennsylvania places

Hail map · Allison Park

Allison Park West View Franklin Park Pittsburgh Penn Hills New Kensington Economy Lower Burrell 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
10 most recent reports with a location; Allegheny County is shaded. Open street map

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What the record says about Allison Park

The latest hail report in and around Allison Park is from April 2, 2025, 0.75 in (penny size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.25 in on April 2, 2025.

Over the 20 years 2006–2025, Allison Park logged 7 reports on 4 hail days, about 0.3 reports a year. That is 22% less than the median Pennsylvania town on this site (0.5 a year) and ranks #88 of 108 Pennsylvania cities and towns on this site for all-time reports. Allison Park accounts for 2% of the 446 reports filed in Allegheny County.

0% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median Pennsylvania town on this site. The largest hail on record here is 1.75 in (golf ball) on June 12, 2003 near 2 SE Gibsonia.

The busiest year was 2025, with 4 reports on 1 day. Hail here peaks in April (50% of reports); 90% fall between April and June.

Reports a year 2006–2025 average

  • Allison Park 0.3
  • Allegheny County 15.1
  • Median Pennsylvania town on this site 0.5

Hail days 2006–2025

  • Allison Park 4
  • Allegheny County 76
  • Median Pennsylvania town on this site 6

Share 2 in or larger of sized reports

  • Allison Park 0%
  • Allegheny County 2%
  • Median Pennsylvania town on this site 0%

Hail over time

01234 1979: 1 reports, largest 1.00 in 1980 1990 1998: 1 reports, largest 0.75 in 2000 2003: 1 reports, largest 1.75 in 2010 2013: 1 reports, largest 0.88 in 2018: 1 reports, largest 1.00 in 2020 2021: 1 reports, largest 1.00 in 2025: 4 reports, largest 1.25 in
Reports per year, 1979–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 Jan Feb Mar April: 5 reports (50%) Apr May: 1 reports (10%) May June: 3 reports (30%) Jun Jul August: 1 reports (10%) Aug Sep Oct Nov Dec
All 10 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 4 4
2024 0
2023 0
2022 0
2021 1 1
2020 0
2019 0
2018 1 1
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 2, 2025 4 1.25 in —

Largest hail on record

Largest hail reports in Allison Park
Date Size Location County Time · source
Jun 12, 2003 1.75 ingolf ball 2 SE Gibsonia Allegheny 16:50 local · NCEI
Apr 2, 2025 1.25 inhalf dollar 1.74 NE Highcliff Allegheny 13:22 local · NCEI
Apr 2, 2025 1.00 inquarter 1.72 ENE Shalecrest Allegheny 13:24 local · NCEI
Apr 2, 2025 1.00 inquarter 1.74 NE Highcliff Allegheny 13:21 local · NCEI
Jun 13, 2021 1.00 inquarter 2.6 SE Wexford Allegheny 16:55 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Allison Park
Date Size Location County Time · source
Apr 2, 2025 0.75 inpenny 2.1 E Highland Allegheny 13:25 local · NCEI
Apr 2, 2025 1.00 inquarter 1.72 ENE Shalecrest Allegheny 13:24 local · NCEI
Apr 2, 2025 1.25 inhalf dollar 1.74 NE Highcliff Allegheny 13:22 local · NCEI
Apr 2, 2025 1.00 inquarter 1.74 NE Highcliff Allegheny 13:21 local · NCEI
Jun 13, 2021 1.00 inquarter 2.6 SE Wexford Allegheny 16:55 local · NCEI
Aug 13, 2018 1.00 inquarter 2.09 NE Talley Gavey Allegheny 12:24 local · NCEI
Apr 10, 2013 0.88 innickel 0.69 N Talley Gavey Allegheny 18:04 local · NCEI
Jun 12, 2003 1.75 ingolf ball 2 SE Gibsonia Allegheny 16:50 local · NCEI
Jun 2, 1998 0.75 inpenny Wildwood Allegheny 16:55 local · NCEI
May 11, 1979 1.00 inquarter — Allegheny 16:41 local · NCEI

Hail history near Allison Park

Questions about hail in Allison Park

How often does it hail in Allison Park, Pennsylvania?

10 hail reports have been logged in and within about 5 km (3 miles) of Allison Park since 1979. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #88 of 108 Pennsylvania places by number of reports.

When is hail season in Allison Park?

Most reports come in April, June, May. April alone accounts for 50% of all reports.

What is the largest hail recorded in Allison Park?

1.75 in (golf ball size) on June 12, 2003 near 2 SE Gibsonia. 0% of reports here were 2 inches or larger.

When did it last hail in Allison Park?

The most recent report in this data is from April 2, 2025 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Allison Park had in the last five years?

1 separate days with hail reports since November 3, 2021, adding up to 4 reports. The most recent was April 2, 2025.

Where does this hail data come from?

Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.