St. Louis County Power Outage History
2014–2025 · Minnesota
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 |
|---|---|---|---|
| Jul 21, 2016 | 108 hrs | 34,294 (27%) | Heat |
| Apr 13, 2022 | 8 hrs | 11,356 (9%) | Heavy Snow |
| Jul 27, 2021 | 9 hrs | 10,565 (8%) | Drought |
| Mar 22, 2016 | 1 hrs | 9,702 (8%) | Heavy Snow |
| Jun 21, 2022 | 72 hrs | 9,065 (7%) | Flood |
Over the 12 years from 2014 to 2025, St. Louis County recorded 1,453 distinct power outage events, averaging 3.2 hours per event.
The single worst outage on record in St. Louis County started July 21, 2016 (Heat), lasting 108 hours and leaving up to 34,294 customers without power (27% of the county) at its peak.
June has historically been the worst month for outages in St. Louis County, with 196 events recorded during that month across the dataset.
Based on this history, St. Louis County earns a Reliability Grade of C, placing it in the 43rd percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Minnesota
Counties with the closest reliability grade and national percentile to St. Louis County.
| County | Grade | National percentile |
|---|---|---|
| Todd County | C | 43rd |
| Beltrami County | C | 41st |
| Pipestone County | D | 38th |
| Koochiching County | C | 47th |
| Lake County | D | 38th |
FAQ
How often does power go out in St. Louis County?
Between 2014 and 2025, St. Louis County recorded 1,453 outage events, averaging 3.2 hours each.
What is St. Louis County's reliability grade?
St. Louis County has a Reliability Grade of C, in the 43rd national percentile.
What was the worst power outage in St. Louis County?
The worst outage on record started July 21, 2016 (Heat), lasting 108 hours and affecting up to 34,294 customers.