York County Power Outage History
2014–2025 · Maine
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 4, 2024 | 30 hrs | 90,611 (66%) | Winter Storm |
| Apr 5, 2024 | 24 hrs | 81,193 (59%) | Winter Storm |
| Oct 30, 2017 | 126 hrs | 74,835 (55%) | Tropical Storm Phillipe |
| Oct 30, 2017 | 0 hrs | 73,956 (54%) | Tropical Storm Phillipe |
| Oct 30, 2017 | 14 hrs | 71,905 (53%) | Tropical Storm Phillipe |
Over the 12 years from 2014 to 2025, York County recorded 1,662 distinct power outage events, averaging 3.1 hours per event.
The single worst outage on record in York County started April 4, 2024 (Winter Storm), lasting 30 hours and leaving up to 90,611 customers without power (66% of the county) at its peak.
July has historically been the worst month for outages in York County, with 185 events recorded during that month across the dataset.
Based on this history, York County earns a Reliability Grade of F, placing it in the 6th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Maine
Counties with the closest reliability grade and national percentile to York County.
| County | Grade | National percentile |
|---|---|---|
| Knox County | F | 6th |
| Kennebec County | F | 6th |
| Piscataquis County | F | 7th |
| Franklin County | F | 3rd |
| Penobscot County | F | 3rd |
FAQ
How often does power go out in York County?
Between 2014 and 2025, York County recorded 1,662 outage events, averaging 3.1 hours each.
What is York County's reliability grade?
York County has a Reliability Grade of F, in the 6th national percentile.
What was the worst power outage in York County?
The worst outage on record started April 4, 2024 (Winter Storm), lasting 30 hours and affecting up to 90,611 customers.