PowerOutageHistory
B

Kewaunee County Power Outage History

20142025 · Wisconsin

Better than average — fewer or shorter outages than most counties. How grades are calculated

Total events
227
Avg duration
2.4 hrs
Longest outage
65 hrs
National percentile
75th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Apr 3, 202465 hrs3,691 (26%)Unnamed event
Jul 21, 20193 hrs3,645 (25%)Thunderstorm Wind
Jul 22, 20196 hrs3,265 (23%)Thunderstorm Wind
Jul 22, 20195 hrs2,963 (21%)Thunderstorm Wind
Aug 27, 202418 hrs2,897 (20%)Thunderstorm Wind

Over the 12 years from 2014 to 2025, Kewaunee County recorded 227 distinct power outage events, averaging 2.4 hours per event.

The single worst outage on record in Kewaunee County started April 3, 2024, lasting 65 hours and leaving up to 3,691 customers without power (26% of the county) at its peak.

July has historically been the worst month for outages in Kewaunee County, with 32 events recorded during that month across the dataset.

Based on this history, Kewaunee County earns a Reliability Grade of B, placing it in the 75th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Kewaunee County's outage profile

See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.

Outage-prep kit

See our outage-prep guides.

Similar counties in Wisconsin

Counties with the closest reliability grade and national percentile to Kewaunee County.

CountyGradeNational percentile
Dodge CountyB74th
Buffalo CountyB74th
Barron CountyB76th
St. Croix CountyB73rd
Adams CountyB76th

FAQ

How often does power go out in Kewaunee County?

Between 2014 and 2025, Kewaunee County recorded 227 outage events, averaging 2.4 hours each.

What is Kewaunee County's reliability grade?

Kewaunee County has a Reliability Grade of B, in the 75th national percentile.

What was the worst power outage in Kewaunee County?

The worst outage on record started April 3, 2024, lasting 65 hours and affecting up to 3,691 customers.

Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.