Calumet County Power Outage History
2014–2025 · Wisconsin
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 8, 2020 | 0 hrs | 28,485 (69%) | Unnamed event |
| Dec 1, 2019 | 6 hrs | 6,074 (15%) | Winter Storm |
| Apr 2, 2024 | 49 hrs | 5,848 (14%) | Winter Storm |
| Jul 20, 2019 | 38 hrs | 5,014 (12%) | Thunderstorm Wind |
| Aug 8, 2021 | 2 hrs | 4,341 (10%) | Unnamed event |
Over the 12 years from 2014 to 2025, Calumet County recorded 221 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Calumet County started May 8, 2020, lasting 0 hours and leaving up to 28,485 customers without power (69% of the county) at its peak.
June has historically been the worst month for outages in Calumet County, with 38 events recorded during that month across the dataset.
Based on this history, Calumet County earns a Reliability Grade of A, placing it in the 87th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Calumet County's outage profile
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Similar counties in Wisconsin
Counties with the closest reliability grade and national percentile to Calumet County.
| County | Grade | National percentile |
|---|---|---|
| Trempealeau County | A | 86th |
| Monroe County | A | 86th |
| Vernon County | A | 85th |
| Dunn County | A | 85th |
| Burnett County | A | 89th |
FAQ
How often does power go out in Calumet County?
Between 2014 and 2025, Calumet County recorded 221 outage events, averaging 2.5 hours each.
What is Calumet County's reliability grade?
Calumet County has a Reliability Grade of A, in the 87th national percentile.
What was the worst power outage in Calumet County?
The worst outage on record started May 8, 2020, lasting 0 hours and affecting up to 28,485 customers.