Westmoreland County was hit as recently as 2026-05-13, 79 days ago. Westmoreland County is hit in most years, and usually several times over. The largest stone on record here is 2 inches, a hen egg and twice the National Weather Service's 1 inch severe criterion, reported on 2017-04-20 near West New Kensington.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Pennsylvania. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-05-13, around West Newton. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Westmoreland County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 37 separate hail days here since 2010 -- 2.2 a year over 17 years of record. Those days carry 107 separate reports between them, two or three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2012, with 5 hail days. The last five years track the long-run rate, with 10 days since 2022.
Most hail here stays under 2 inches: only 2 of the 37 days on record passed it, 5%, the last on 2017-04-20. Those big days do not follow the county's usual calendar: most of them fall in March, not May. Golf-ball size is rarer still: 1.75 inches or more on 7 of the 37 days.
Across the whole of Pennsylvania, see the Pennsylvania hail map and history.
Reports cluster nearest Mount Pleasant -- 6 of the county's 37 hail days -- then Irwin (5), Greensburg (4), New Kensington (4) and Latrobe (3). Beyond those, NOAA names North Washington, West Newton, Donegal, Murrysville, Avonmore, Jeannette, Delmont, Ligonier and New Stanton on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Irwin | 5 | 1.75″ |
| Mount Pleasant | 5 | 1.75″ |
| New Kensington | 4 | 1.25″ |
| Latrobe | 3 | 1.75″ |
| West Newton | 3 | 1.50″ |
The season runs April through August: 30 of the 37 hail days on record fall in those 5 months (81%). May is the single busiest month, with 11 of them (30%). That peak sits inside the window rather than at either end. Hail has also been reported in March, September, October and November, outside that window. January, February and December are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| March | 3 |
| April | 3 |
| May | 11 |
| June | 4 |
| July | 5 |
| August | 7 |
| September | 2 |
| October | 1 |
| November | 1 |
That day put 3 reports on the map, the biggest 1 inch near West Newton. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-05-13 | 1.00″ | 3 |
| 2025-05-04 | 1.00″ | 1 |
| 2025-03-16 | 1.75″ | 8 |
| 2024-05-29 | 1.00″ | 1 |
| 2024-05-11 | 1.00″ | 3 |
| 2023-08-12 | 1.25″ | 5 |
| 2023-07-13 | 1.25″ | 1 |
| 2022-11-27 | 1.00″ | 3 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 2 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Allegheny County (40 hail days), Fayette County (22) and Indiana County (20). Westmoreland County sits in between.
Allegheny County · Fayette County · Indiana County
Back to the Pennsylvania hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Westmoreland County, Pennsylvania only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.