Brown 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 |
|---|---|---|---|
| Jun 15, 2022 | 70 hrs | 36,455 (18%) | Thunderstorm Wind |
| Jul 8, 2022 | 1 hrs | 23,987 (12%) | Unnamed event |
| Apr 2, 2024 | 76 hrs | 19,506 (10%) | Winter Storm |
| Jul 21, 2019 | 3 hrs | 18,898 (9%) | Thunderstorm Wind |
| Jul 22, 2019 | 6 hrs | 16,065 (8%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Brown County recorded 746 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Brown County started June 15, 2022 (Thunderstorm Wind), lasting 70 hours and leaving up to 36,455 customers without power (18% of the county) at its peak.
June has historically been the worst month for outages in Brown County, with 111 events recorded during that month across the dataset.
Based on this history, Brown County earns a Reliability Grade of B, placing it in the 79th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Brown County's outage profile
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Outage-prep kit
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Similar counties in Wisconsin
Counties with the closest reliability grade and national percentile to Brown County.
| County | Grade | National percentile |
|---|---|---|
| Grant County | B | 79th |
| Lafayette County | B | 79th |
| Clark County | B | 78th |
| Winnebago County | B | 77th |
| Adams County | B | 76th |
FAQ
How often does power go out in Brown County?
Between 2014 and 2025, Brown County recorded 746 outage events, averaging 2.4 hours each.
What is Brown County's reliability grade?
Brown County has a Reliability Grade of B, in the 79th national percentile.
What was the worst power outage in Brown County?
The worst outage on record started June 15, 2022 (Thunderstorm Wind), lasting 70 hours and affecting up to 36,455 customers.