St. Lawrence CountyPower Outage History
What this grade means
Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.
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 |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for St. Lawrence County, New York that day.
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).
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 |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
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.