Jefferson County Power Outage History
2014–2025 · New York
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 |
|---|---|---|---|
| Mar 2, 2022 | 1 hrs | 39,726 (64%) | Winter Storm |
| Jan 10, 2024 | 69 hrs | 31,424 (50%) | High Wind |
| Apr 25, 2025 | 2 hrs | 23,306 (37%) | Unnamed event |
| Jan 16, 2018 | 3 hrs | 15,947 (26%) | Winter Storm |
| Jun 19, 2022 | 3 hrs | 9,502 (15%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Jefferson County recorded 677 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Jefferson County started March 2, 2022 (Winter Storm), lasting 1 hours and leaving up to 39,726 customers without power (64% of the county) at its peak.
July has historically been the worst month for outages in Jefferson County, with 85 events recorded during that month across the dataset.
Based on this history, Jefferson County earns a Reliability Grade of C, placing it in the 51st 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 Jefferson County.
| County | Grade | National percentile |
|---|---|---|
| Nassau County | C | 51st |
| Wayne County | C | 50th |
| Cayuga County | C | 50th |
| Suffolk County | C | 52nd |
| Rockland County | C | 49th |
FAQ
How often does power go out in Jefferson County?
Between 2014 and 2025, Jefferson County recorded 677 outage events, averaging 2.4 hours each.
What is Jefferson County's reliability grade?
Jefferson County has a Reliability Grade of C, in the 51st national percentile.
What was the worst power outage in Jefferson County?
The worst outage on record started March 2, 2022 (Winter Storm), lasting 1 hours and affecting up to 39,726 customers.