Oswego 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 |
|---|---|---|---|
| Apr 15, 2018 | 46 hrs | 14,521 (25%) | Ice Storm |
| Oct 15, 2017 | 26 hrs | 12,299 (21%) | Coastal Flood |
| Apr 30, 2021 | 5 hrs | 11,773 (20%) | Unnamed event |
| Jun 6, 2017 | 1 hrs | 11,694 (20%) | Coastal Flood |
| Nov 17, 2022 | 14 hrs | 10,870 (19%) | Lake-Effect Snow |
Over the 12 years from 2014 to 2025, Oswego County recorded 940 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Oswego County started April 15, 2018 (Ice Storm), lasting 46 hours and leaving up to 14,521 customers without power (25% of the county) at its peak.
June has historically been the worst month for outages in Oswego County, with 118 events recorded during that month across the dataset.
Based on this history, Oswego County earns a Reliability Grade of C, placing it in the 43rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Oswego County's outage profile
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Similar counties in New York
Counties with the closest reliability grade and national percentile to Oswego County.
| County | Grade | National percentile |
|---|---|---|
| Montgomery County | C | 43rd |
| Albany County | C | 45th |
| Schenectady County | C | 45th |
| Seneca County | C | 45th |
| Cattaraugus County | C | 41st |
FAQ
How often does power go out in Oswego County?
Between 2014 and 2025, Oswego County recorded 940 outage events, averaging 2.7 hours each.
What is Oswego County's reliability grade?
Oswego County has a Reliability Grade of C, in the 43rd national percentile.
What was the worst power outage in Oswego County?
The worst outage on record started April 15, 2018 (Ice Storm), lasting 46 hours and affecting up to 14,521 customers.