Brown CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
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 |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Brown County, Wisconsin that day.
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).
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 |
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 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.