Columbia County Power Outage History
2014–2025 · Pennsylvania
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 28, 2015 | 2 hrs | 21,274 (60%) | Unnamed event |
| Oct 28, 2015 | 12 hrs | 15,680 (44%) | Unnamed event |
| Jun 26, 2024 | 2 hrs | 12,315 (35%) | Thunderstorm Wind |
| Jun 27, 2024 | 0 hrs | 12,082 (34%) | Thunderstorm Wind |
| Jun 27, 2024 | 1 hrs | 12,077 (34%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Columbia County recorded 947 distinct power outage events, averaging 3.1 hours per event.
The single worst outage on record in Columbia County started October 28, 2015, lasting 2 hours and leaving up to 21,274 customers without power (60% of the county) at its peak.
July has historically been the worst month for outages in Columbia County, with 119 events recorded during that month across the dataset.
Based on this history, Columbia County earns a Reliability Grade of D, placing it in the 27th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Pennsylvania
Counties with the closest reliability grade and national percentile to Columbia County.
| County | Grade | National percentile |
|---|---|---|
| McKean County | D | 27th |
| Montgomery County | D | 28th |
| Jefferson County | D | 28th |
| Warren County | D | 28th |
| Clarion County | D | 29th |
FAQ
How often does power go out in Columbia County?
Between 2014 and 2025, Columbia County recorded 947 outage events, averaging 3.1 hours each.
What is Columbia County's reliability grade?
Columbia County has a Reliability Grade of D, in the 27th national percentile.
What was the worst power outage in Columbia County?
The worst outage on record started October 28, 2015, lasting 2 hours and affecting up to 21,274 customers.