PowerOutageHistory
B

Buffalo County Power Outage History

20152025 · Wisconsin

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

Total events
315
Avg duration
2.4 hrs
Longest outage
43 hrs
National percentile
74th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Apr 3, 20241 hrs2,326 (33%)Unnamed event
Jul 11, 20221 hrs2,049 (29%)Unnamed event
Jun 6, 20243 hrs1,598 (23%)Unnamed event
Jun 17, 201819 hrs1,582 (22%)Heavy Rain
Jan 2, 20191 hrs1,569 (22%)Unnamed event

Over the 11 years from 2015 to 2025, Buffalo County recorded 315 distinct power outage events, averaging 2.4 hours per event.

The single worst outage on record in Buffalo County started April 3, 2024, lasting 1 hours and leaving up to 2,326 customers without power (33% of the county) at its peak.

July has historically been the worst month for outages in Buffalo County, with 78 events recorded during that month across the dataset.

Based on this history, Buffalo County earns a Reliability Grade of B, placing it in the 74th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Buffalo 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 Buffalo County.

CountyGradeNational percentile
Dodge CountyB74th
St. Croix CountyB73rd
Green Lake CountyB73rd
Kewaunee CountyB75th
Sheboygan CountyB72nd

FAQ

How often does power go out in Buffalo County?

Between 2015 and 2025, Buffalo County recorded 315 outage events, averaging 2.4 hours each.

What is Buffalo County's reliability grade?

Buffalo County has a Reliability Grade of B, in the 74th national percentile.

What was the worst power outage in Buffalo County?

The worst outage on record started April 3, 2024, lasting 1 hours and affecting up to 2,326 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.