Pepin CountyPower Outage History
2014–2025 · Wisconsin
Top 20% most reliable nationally — infrequent, short outages.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 12, 2022 | 4 hrs | 2,025 (40%) | Tornado |
| Jul 18, 2015 | <1 hr | 1,737 (34%) | Unnamed event |
| Jul 18, 2015 | <1 hr | 1,736 (34%) | Unnamed event |
| Aug 10, 2018 | 1 hrs | 1,730 (34%) | Unnamed event |
| Nov 15, 2021 | 1 hrs | 1,728 (34%) | Unnamed event |
Over the 12 years from 2014 to 2025, Pepin County recorded 203 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Pepin County started May 12, 2022 (Tornado), lasting 4 hours and leaving up to 2,025 customers without power (40% of the county) at its peak.
July has historically been the worst month for outages in Pepin County, with 42 events recorded during that month across the dataset.
Based on this history, Pepin County earns a Reliability Grade of A, placing it in the 83rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Pepin 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 Pepin County.
| County | Grade | National percentile |
|---|---|---|
| La Crosse County | A | 84th |
| Chippewa County | A | 83rd |
| Wood County | A | 82nd |
| Dunn County | A | 85th |
| Vernon County | A | 85th |
Most reliable counties in Wisconsin
The top 3 counties in Wisconsin by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Jackson County | A | 97th |
| Manitowoc County | A | 94th |
| Taylor County | A | 93rd |
Least reliable counties in Wisconsin
The bottom 3 counties in Wisconsin by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Vilas County | F | 8th |
| Oneida County | F | 12th |
| Forest County | F | 14th |
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 Pepin County?
Between 2014 and 2025, Pepin County recorded 203 outage events, averaging 2.3 hours each.
What is Pepin County's reliability grade?
Pepin County has a Reliability Grade of A, in the 83rd national percentile.
What was the worst power outage in Pepin County?
The worst outage on record started May 12, 2022 (Tornado), lasting 4 hours and affecting up to 2,025 customers.