Franklin County Power Outage History
2014–2025 · Pennsylvania
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 20, 2025 | 61 hrs | 11,561 (15%) | Thunderstorm Wind |
| Jun 21, 2021 | 23 hrs | 7,987 (10%) | Thunderstorm Wind |
| May 3, 2023 | 5 hrs | 7,589 (10%) | Unnamed event |
| May 29, 2019 | 9 hrs | 5,525 (7%) | Thunderstorm Wind |
| Dec 20, 2021 | 6 hrs | 5,340 (7%) | Unnamed event |
Over the 12 years from 2014 to 2025, Franklin County recorded 652 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Franklin County started April 20, 2025 (Thunderstorm Wind), lasting 61 hours and leaving up to 11,561 customers without power (15% of the county) at its peak.
June has historically been the worst month for outages in Franklin County, with 74 events recorded during that month across the dataset.
Based on this history, Franklin County earns a Reliability Grade of A, placing it in the 82nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Franklin County's outage profile
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Similar counties in Pennsylvania
Counties with the closest reliability grade and national percentile to Franklin County.
| County | Grade | National percentile |
|---|---|---|
| Philadelphia County | A | 83rd |
| Dauphin County | A | 84th |
| Lancaster County | B | 80th |
| Union County | A | 86th |
| Luzerne County | B | 77th |
FAQ
How often does power go out in Franklin County?
Between 2014 and 2025, Franklin County recorded 652 outage events, averaging 2.2 hours each.
What is Franklin County's reliability grade?
Franklin County has a Reliability Grade of A, in the 82nd national percentile.
What was the worst power outage in Franklin County?
The worst outage on record started April 20, 2025 (Thunderstorm Wind), lasting 61 hours and affecting up to 11,561 customers.