Westmoreland County Power Outage History
2014–2025 · Pennsylvania
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 29, 2025 | 148 hrs | 67,124 (36%) | Thunderstorm Wind |
| May 3, 2022 | 29 hrs | 25,698 (14%) | Thunderstorm Wind |
| Feb 24, 2019 | 105 hrs | 24,482 (13%) | Winter Weather |
| Apr 8, 2020 | 43 hrs | 20,993 (11%) | Thunderstorm Wind |
| Jun 22, 2022 | 46 hrs | 20,257 (11%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Westmoreland County recorded 2,481 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Westmoreland County started April 29, 2025 (Thunderstorm Wind), lasting 148 hours and leaving up to 67,124 customers without power (36% of the county) at its peak.
June has historically been the worst month for outages in Westmoreland County, with 348 events recorded during that month across the dataset.
Based on this history, Westmoreland County earns a Reliability Grade of C, placing it in the 41st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Westmoreland County's outage profile
See more picks in our Best Dual-Fuel Portable Generators for Power Outages roundup.
Champion Power Equipment 4375-Watt Dual Fuel RV Ready Portable Generator with Free 3-Year Warranty
Outage-prep kit
See our outage-prep guides.
Similar counties in Pennsylvania
Counties with the closest reliability grade and national percentile to Westmoreland County.
| County | Grade | National percentile |
|---|---|---|
| Tioga County | C | 41st |
| Allegheny County | C | 42nd |
| Beaver County | C | 41st |
| Fayette County | C | 41st |
| Juniata County | C | 43rd |
FAQ
How often does power go out in Westmoreland County?
Between 2014 and 2025, Westmoreland County recorded 2,481 outage events, averaging 2.8 hours each.
What is Westmoreland County's reliability grade?
Westmoreland County has a Reliability Grade of C, in the 41st national percentile.
What was the worst power outage in Westmoreland County?
The worst outage on record started April 29, 2025 (Thunderstorm Wind), lasting 148 hours and affecting up to 67,124 customers.