Hail in Pennsylvania — where it hits, county by county
Hail is a fact of life on Pennsylvania ground — 420 National Weather Service hail reports in the last 5 years, led by Allegheny County, peaking around April. The table below ranks the counties; the interactive national map shows exactly where, year by year. Checking a specific address? The map’s search box pulls every dated report within 25 miles.
Open the interactive map on Pennsylvania →Top hail counties in Pennsylvania (2022–2026)
| County | Reports | Avg/yr | Peak month | % damaging (≥1.5″) |
|---|---|---|---|---|
| Allegheny | 81 | 16.2 | Apr | 22% |
| Butler | 46 | 9.2 | Apr | 13% |
| Washington | 40 | 8.0 | Aug | 12% |
| Westmoreland | 37 | 7.4 | Mar | 11% |
| Montgomery | 31 | 6.2 | Jun | 3% |
| Chester | 31 | 6.2 | Jun | 0% |
| Centre | 31 | 6.2 | Mar | 0% |
| Beaver | 29 | 5.8 | Mar | 0% |
| Lawrence | 27 | 5.4 | Apr | 30% |
| Lehigh | 25 | 5.0 | Apr | 0% |
| Indiana | 21 | 4.2 | May | 43% |
| Berks | 21 | 4.2 | Sep | 0% |
Key figures — Pennsylvania hail at a glance
- Pennsylvania logged 420 National Weather Service hail reports statewide over the last 5 years (2022–2026).
- Allegheny County leads Pennsylvania with 81 hail reports over that span — about 16.2 per year.
- Reported hail in Pennsylvania peaks in April.
- Roughly 51 of Pennsylvania's reports involved stones 1.5″ or larger — the size that damages roofs, vehicles, and crops.
Citing these figures? Attribution: AGSIST National Hail Map, https://agsist.com/hail-map/pennsylvania (NWS Local Storm Reports, 2022–2026). Data is available at no charge; a link back keeps it that way.
Pennsylvania hail — the questions people ask
Where does it hail the most in Pennsylvania?
By reported hail over the last 5 years, the most active counties in Pennsylvania are Allegheny, Butler, Washington. Reports track population and spotter coverage as well as storms, so rural corridors can be under-counted; the persistent leaders on this table are real hail geography.
When is hail season in Pennsylvania?
Reported hail in Pennsylvania peaks around April, with most activity in the spring-through-midsummer window. Any single year can break the pattern.
How much of Pennsylvania's hail is damaging?
On this page, damaging means reported stones of 1.5″ or larger — the size that reliably dents roofs and vehicles and strips crops. The per-county damaging share is in the table; statewide, hail of any size totaled 420 reports over 5 years.
Insurance, roofing, or ag professional using this data in client-facing work? The same dataset is available as a licensable embeddable widget — details on the sponsor page or email sig@farmers1st.com.