Allegany County Power Outage History
2014–2025 · New York
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 |
|---|---|---|---|
| Jul 10, 2018 | 0 hrs | 14,946 (54%) | Lightning |
| Feb 16, 2016 | 36 hrs | 10,167 (37%) | Extreme Cold/Wind Chill |
| Mar 2, 2018 | 96 hrs | 9,447 (34%) | Winter Storm |
| Sep 7, 2020 | 30 hrs | 9,012 (33%) | Thunderstorm Wind |
| May 1, 2017 | 39 hrs | 8,489 (31%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Allegany County recorded 671 distinct power outage events, averaging 3.1 hours per event.
The single worst outage on record in Allegany County started July 10, 2018 (Lightning), lasting 0 hours and leaving up to 14,946 customers without power (54% of the county) at its peak.
July has historically been the worst month for outages in Allegany County, with 82 events recorded during that month across the dataset.
Based on this history, Allegany County earns a Reliability Grade of D, placing it in the 31st percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in New York
Counties with the closest reliability grade and national percentile to Allegany County.
| County | Grade | National percentile |
|---|---|---|
| Orange County | D | 31st |
| Steuben County | D | 29th |
| Wyoming County | D | 29th |
| Westchester County | D | 29th |
| Lewis County | D | 29th |
FAQ
How often does power go out in Allegany County?
Between 2014 and 2025, Allegany County recorded 671 outage events, averaging 3.1 hours each.
What is Allegany County's reliability grade?
Allegany County has a Reliability Grade of D, in the 31st national percentile.
What was the worst power outage in Allegany County?
The worst outage on record started July 10, 2018 (Lightning), lasting 0 hours and affecting up to 14,946 customers.