St. Lawrence 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 4, 2018 | 52 hrs | 11,498 (20%) | High Wind |
| Jan 10, 2024 | 66 hrs | 11,372 (20%) | Winter Weather |
| Nov 1, 2019 | 65 hrs | 10,948 (19%) | High Wind |
| Feb 9, 2022 | 3 hrs | 9,600 (17%) | Winter Storm |
| Dec 11, 2021 | 49 hrs | 8,769 (15%) | Strong Wind |
Over the 12 years from 2014 to 2025, St. Lawrence County recorded 714 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in St. Lawrence County started April 4, 2018 (High Wind), lasting 52 hours and leaving up to 11,498 customers without power (20% of the county) at its peak.
June has historically been the worst month for outages in St. Lawrence County, with 85 events recorded during that month across the dataset.
Based on this history, St. Lawrence County earns a Reliability Grade of C, placing it in the 55th 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 St. Lawrence County.
| County | Grade | National percentile |
|---|---|---|
| Clinton County | C | 55th |
| Chemung County | C | 54th |
| Suffolk County | C | 52nd |
| Cortland County | C | 57th |
| Nassau County | C | 51st |
FAQ
How often does power go out in St. Lawrence County?
Between 2014 and 2025, St. Lawrence County recorded 714 outage events, averaging 2.4 hours each.
What is St. Lawrence County's reliability grade?
St. Lawrence County has a Reliability Grade of C, in the 55th national percentile.
What was the worst power outage in St. Lawrence County?
The worst outage on record started April 4, 2018 (High Wind), lasting 52 hours and affecting up to 11,498 customers.