Northumberland 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 |
|---|---|---|---|
| Feb 13, 2024 | 16 hrs | 18,268 (39%) | Heavy Snow |
| Oct 31, 2019 | 34 hrs | 13,054 (28%) | Unnamed event |
| May 23, 2018 | 0 hrs | 10,690 (23%) | Unnamed event |
| Apr 15, 2019 | 44 hrs | 9,990 (22%) | Thunderstorm Wind |
| Apr 3, 2025 | 7 hrs | 9,905 (21%) | Drought |
Over the 12 years from 2014 to 2025, Northumberland County recorded 718 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Northumberland County started February 13, 2024 (Heavy Snow), lasting 16 hours and leaving up to 18,268 customers without power (39% of the county) at its peak.
July has historically been the worst month for outages in Northumberland County, with 73 events recorded during that month across the dataset.
Based on this history, Northumberland County earns a Reliability Grade of C, placing it in the 58th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Northumberland County's outage profile
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Similar counties in Pennsylvania
Counties with the closest reliability grade and national percentile to Northumberland County.
| County | Grade | National percentile |
|---|---|---|
| Lebanon County | C | 58th |
| Lycoming County | C | 59th |
| Adams County | C | 56th |
| Lawrence County | C | 60th |
| York County | C | 56th |
FAQ
How often does power go out in Northumberland County?
Between 2014 and 2025, Northumberland County recorded 718 outage events, averaging 2.9 hours each.
What is Northumberland County's reliability grade?
Northumberland County has a Reliability Grade of C, in the 58th national percentile.
What was the worst power outage in Northumberland County?
The worst outage on record started February 13, 2024 (Heavy Snow), lasting 16 hours and affecting up to 18,268 customers.