Sauk 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 |
|---|---|---|---|
| Jul 29, 2023 | 41 hrs | 9,935 (16%) | Thunderstorm Wind |
| Dec 5, 2017 | 1 hrs | 7,586 (12%) | Strong Wind |
| Dec 15, 2022 | 8 hrs | 5,871 (10%) | Winter Weather |
| Jun 11, 2016 | 5 hrs | 5,532 (9%) | Thunderstorm Wind |
| Jun 23, 2025 | 13 hrs | 4,932 (8%) | Excessive Heat |
Over the 12 years from 2014 to 2025, Sauk County recorded 381 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Sauk County started July 29, 2023 (Thunderstorm Wind), lasting 41 hours and leaving up to 9,935 customers without power (16% of the county) at its peak.
July has historically been the worst month for outages in Sauk County, with 67 events recorded during that month across the dataset.
Based on this history, Sauk County earns a Reliability Grade of A, placing it in the 90th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Sauk County's outage profile
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Similar counties in Wisconsin
Counties with the closest reliability grade and national percentile to Sauk County.
| County | Grade | National percentile |
|---|---|---|
| Pierce County | A | 90th |
| Columbia County | A | 90th |
| Eau Claire County | A | 90th |
| Richland County | A | 91st |
| Fond du Lac County | A | 90th |
FAQ
How often does power go out in Sauk County?
Between 2014 and 2025, Sauk County recorded 381 outage events, averaging 1.9 hours each.
What is Sauk County's reliability grade?
Sauk County has a Reliability Grade of A, in the 90th national percentile.
What was the worst power outage in Sauk County?
The worst outage on record started July 29, 2023 (Thunderstorm Wind), lasting 41 hours and affecting up to 9,935 customers.