Florence County Power Outage History
2014–2025 · Wisconsin
Worse than average — more frequent or longer 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 |
|---|---|---|---|
| May 16, 2020 | 0 hrs | 4,280 (54%) | Unnamed event |
| Nov 27, 2019 | 58 hrs | 3,370 (43%) | Winter Storm |
| Jun 11, 2017 | 64 hrs | 2,660 (34%) | Thunderstorm Wind |
| Mar 30, 2025 | 116 hrs | 1,764 (22%) | Winter Storm |
| Dec 16, 2021 | 52 hrs | 1,167 (15%) | Winter Storm |
Over the 12 years from 2014 to 2025, Florence County recorded 319 distinct power outage events, averaging 4.9 hours per event.
The single worst outage on record in Florence County started May 16, 2020, lasting 0 hours and leaving up to 4,280 customers without power (54% of the county) at its peak.
June has historically been the worst month for outages in Florence County, with 42 events recorded during that month across the dataset.
Based on this history, Florence County earns a Reliability Grade of D, placing it in the 37th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Wisconsin
Counties with the closest reliability grade and national percentile to Florence County.
| County | Grade | National percentile |
|---|---|---|
| Outagamie County | D | 33rd |
| Portage County | C | 42nd |
| Door County | C | 42nd |
| Waukesha County | C | 42nd |
| Waupaca County | C | 44th |
FAQ
How often does power go out in Florence County?
Between 2014 and 2025, Florence County recorded 319 outage events, averaging 4.9 hours each.
What is Florence County's reliability grade?
Florence County has a Reliability Grade of D, in the 37th national percentile.
What was the worst power outage in Florence County?
The worst outage on record started May 16, 2020, lasting 0 hours and affecting up to 4,280 customers.