County annual report · FIPS 55081
2025 Monroe County, WI Power Outage Report
In 2025, customers in Monroe County, WI went without power for an average of 0.7 hours, a total of 12K customer-hours (Wisconsin average 3.9 hours). That ranks 68th worst of 72 Wisconsin counties and 2836th of 3,000 nationally.
Compared with WI, the US and 2024
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Monroe County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 24, 2025 08:00 | June 24, 2025 18:30 | 10h 30m | 905 | 1,521 |
| 2 | May 27, 2025 16:00 | May 27, 2025 22:30 | 6h 30m | 634 | 3,619 |
| 3 | June 23, 2025 18:45 | June 24, 2025 03:30 | 8h 45m | 495 | 736 |
| 4 | June 5, 2025 12:30 | June 5, 2025 17:00 | 4h 30m | 426 | 1,133 |
| 5 | March 15, 2025 04:00 | March 15, 2025 10:45 | 6h 45m | 192 | 292 |
| 6 | March 17, 2025 20:30 | March 17, 2025 21:45 | 1h 15m | 161 | 201 |
| 7 | December 8, 2025 15:15 | December 8, 2025 15:45 | 30m | 140 | 70 |
| 8 | July 16, 2025 20:00 | July 16, 2025 23:15 | 3h 15m | 117 | 153 |
| 9 | November 18, 2025 17:00 | November 18, 2025 18:45 | 1h 45m | 101 | 163 |
| 10 | April 29, 2025 03:45 | April 29, 2025 11:15 | 7h 30m | 97 | 187 |
Outage episodes by size in 2025: 9 reached 100+ customers, 0 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Monroe County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Northern States Power Co | 2024 | 3.1 hrs | 1.06 | 2.0 hrs | 0.81 |
| Vernon Electric Coop | 2018 | 3.8 hrs | - | 2.4 hrs | - |
| Oakdale Electric Coop | 2024 | 2.5 hrs | 1.03 | 67 min | 0.69 |
| Village of Bangor - (WI) | 2017 | 10 min | 0.09 | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Jackson Electric Coop, Inc - (WI) | - | - | - | - | - |
| Village of Cashton - (WI) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Wisconsin's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 18,029 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Monroe County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Monroe County, WI annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/wisconsin/monroe-county