Oconto 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 |
|---|---|---|---|
| Mar 27, 2019 | 1 hrs | 13,455 (44%) | Unnamed event |
| Dec 1, 2019 | 33 hrs | 10,114 (33%) | Flood |
| Apr 2, 2024 | 100 hrs | 9,706 (32%) | Winter Storm |
| Mar 30, 2025 | 109 hrs | 8,472 (28%) | Winter Storm |
| Jun 10, 2016 | 7 hrs | 7,396 (24%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Oconto County recorded 361 distinct power outage events, averaging 4.4 hours per event.
The single worst outage on record in Oconto County started March 27, 2019, lasting 1 hours and leaving up to 13,455 customers without power (44% of the county) at its peak.
June has historically been the worst month for outages in Oconto County, with 56 events recorded during that month across the dataset.
Based on this history, Oconto County earns a Reliability Grade of D, placing it in the 28th 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 Oconto County.
| County | Grade | National percentile |
|---|---|---|
| Iron County | D | 24th |
| Outagamie County | D | 33rd |
| Florence County | D | 37th |
| Lincoln County | F | 18th |
| Langlade County | F | 16th |
FAQ
How often does power go out in Oconto County?
Between 2014 and 2025, Oconto County recorded 361 outage events, averaging 4.4 hours each.
What is Oconto County's reliability grade?
Oconto County has a Reliability Grade of D, in the 28th national percentile.
What was the worst power outage in Oconto County?
The worst outage on record started March 27, 2019, lasting 1 hours and affecting up to 13,455 customers.