Herkimer County Power Outage History
2014–2025 · New York
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 19, 2022 | 89 hrs | 15,496 (56%) | Winter Storm |
| Aug 13, 2016 | 26 hrs | 7,716 (28%) | Thunderstorm Wind |
| Dec 12, 2021 | 23 hrs | 5,907 (21%) | Strong Wind |
| Oct 7, 2020 | 28 hrs | 5,637 (20%) | Drought |
| Jul 20, 2021 | 16 hrs | 5,445 (20%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Herkimer County recorded 670 distinct power outage events, averaging 3.7 hours per event.
The single worst outage on record in Herkimer County started April 19, 2022 (Winter Storm), lasting 89 hours and leaving up to 15,496 customers without power (56% of the county) at its peak.
July has historically been the worst month for outages in Herkimer County, with 73 events recorded during that month across the dataset.
Based on this history, Herkimer County earns a Reliability Grade of F, placing it in the 16th 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 Herkimer County.
| County | Grade | National percentile |
|---|---|---|
| Delaware County | F | 16th |
| Dutchess County | F | 17th |
| Washington County | F | 18th |
| Schuyler County | F | 15th |
| Yates County | F | 19th |
FAQ
How often does power go out in Herkimer County?
Between 2014 and 2025, Herkimer County recorded 670 outage events, averaging 3.7 hours each.
What is Herkimer County's reliability grade?
Herkimer County has a Reliability Grade of F, in the 16th national percentile.
What was the worst power outage in Herkimer County?
The worst outage on record started April 19, 2022 (Winter Storm), lasting 89 hours and affecting up to 15,496 customers.