St. Croix County Power Outage History
2014–2025 · Wisconsin
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 11, 2022 | 1 hrs | 17,765 (38%) | Hail |
| Sep 17, 2021 | 35 hrs | 13,380 (29%) | Thunderstorm Wind |
| Jul 29, 2025 | 35 hrs | 12,121 (26%) | Thunderstorm Wind |
| Jul 29, 2025 | 0 hrs | 11,688 (25%) | Thunderstorm Wind |
| Jul 24, 2023 | 18 hrs | 11,302 (24%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, St. Croix County recorded 269 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in St. Croix County started May 11, 2022 (Hail), lasting 1 hours and leaving up to 17,765 customers without power (38% of the county) at its peak.
July has historically been the worst month for outages in St. Croix County, with 45 events recorded during that month across the dataset.
Based on this history, St. Croix County earns a Reliability Grade of B, placing it in the 73rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for St. Croix County's outage profile
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Similar counties in Wisconsin
Counties with the closest reliability grade and national percentile to St. Croix County.
| County | Grade | National percentile |
|---|---|---|
| Buffalo County | B | 74th |
| Dodge County | B | 74th |
| Green Lake County | B | 73rd |
| Kewaunee County | B | 75th |
| Sheboygan County | B | 72nd |
FAQ
How often does power go out in St. Croix County?
Between 2014 and 2025, St. Croix County recorded 269 outage events, averaging 3.0 hours each.
What is St. Croix County's reliability grade?
St. Croix County has a Reliability Grade of B, in the 73rd national percentile.
What was the worst power outage in St. Croix County?
The worst outage on record started May 11, 2022 (Hail), lasting 1 hours and affecting up to 17,765 customers.