Manitowoc County Power Outage History
2015–2025 · 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 | 27,135 (41%) | Unnamed event |
| Jul 21, 2019 | 3 hrs | 4,642 (7%) | Thunderstorm Wind |
| Jun 11, 2016 | 24 hrs | 4,376 (7%) | Thunderstorm Wind |
| Jul 22, 2019 | 6 hrs | 4,293 (7%) | Thunderstorm Wind |
| Jul 22, 2019 | 5 hrs | 3,639 (6%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, Manitowoc County recorded 219 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Manitowoc County started May 8, 2020, lasting 0 hours and leaving up to 27,135 customers without power (41% of the county) at its peak.
July has historically been the worst month for outages in Manitowoc County, with 37 events recorded during that month across the dataset.
Based on this history, Manitowoc County earns a Reliability Grade of A, placing it in the 94th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Manitowoc County's outage profile
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Similar counties in Wisconsin
Counties with the closest reliability grade and national percentile to Manitowoc County.
| County | Grade | National percentile |
|---|---|---|
| Taylor County | A | 93rd |
| Price County | A | 92nd |
| Crawford County | A | 92nd |
| Dane County | A | 92nd |
| Jackson County | A | 97th |
FAQ
How often does power go out in Manitowoc County?
Between 2015 and 2025, Manitowoc County recorded 219 outage events, averaging 2.4 hours each.
What is Manitowoc County's reliability grade?
Manitowoc County has a Reliability Grade of A, in the 94th national percentile.
What was the worst power outage in Manitowoc County?
The worst outage on record started May 8, 2020, lasting 0 hours and affecting up to 27,135 customers.