Power outage history
Juneau County Wisconsin
1.4hours
without power for the average customer in a typical year, 2018–2025
59th most of 72 in Wisconsin 79% below the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Juneau's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2023 was the worst well-recorded year, at 2.8 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Juneau, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Jul 28, 2023 | Thunderstorms | 3,506 | 23% | 13 h | 7.5 h | 37k |
| Dec 15, 2022 | Winter storm | 2,446 | 16% | 38 h | 23 h | 25k |
| Feb 24, 2019 | No storm report | 2,199 | 14% | 14 h | 4.0 h | 19k |
| Aug 5, 2019 | Thunderstorms | 2,413 | 16% | 7.8 h | 5.5 h | 6.4k |
| Jul 13, 2015 | Thunderstorms | 592 | 4% | 11 h | – | 5.5k |
| Jun 15, 2022 | Tornadoes | 1,071 | 7% | 5.2 h | 9.2 h | 3.4k |
| Jul 25, 2016 | No storm report | 1,828 | 12% | 4.8 h | 1.5 h | 3.3k |
| Aug 28, 2018 | Thunderstorms | 718 | 5% | 7.2 h | – | 2.8k |
| May 26, 2025 | No storm report | 1,361 | 9% | 2.5 h | 48 min | 2.8k |
| Oct 21, 2019 | No storm report | 1,390 | 9% | 2.0 h | 10 h | 2.6k |
| Jun 10, 2016 | No storm report | 960 | 6% | 3.2 h | 1.8 h | 2.1k |
| Jun 30, 2018 | Thunderstorms | 798 | 5% | 2.8 h | 2.0 h | 2.1k |
| Apr 13, 2023 | No storm report | 646 | 4% | 3.2 h | – | 2.0k |
| Oct 21, 2018 | No storm report | 2,002 | 13% | 1.0 h | 1.0 h | 2.0k |
| Apr 13, 2018 | No storm report | 1,384 | 9% | 1.2 h | 3.2 h | 1.7k |
| May 28, 2020 | No storm report | 468 | 3% | 3.5 h | – | 1.6k |
| Mar 17, 2021 | No storm report | 821 | 5% | 1.8 h | 2.0 h | 1.4k |
| Dec 17, 2016 | No storm report | 449 | 3% | 3.0 h | – | 1.3k |
| Jun 3, 2020 | Thunderstorms | 559 | 4% | 2.8 h | – | 1.3k |
| Jun 2, 2025 | No storm report | 807 | 5% | 1.5 h | 1.5 h | 1.2k |
| Jul 17, 2021 | No storm report | 681 | 4% | 1.5 h | – | 1.0k |
| Aug 16, 2025 | Thunderstorms | 368 | 2% | 5.2 h | – | 972 |
| Dec 16, 2021 | Windstorm | 567 | 4% | 1.8 h | – | 959 |
| Apr 21, 2021 | No storm report | 161 | 1% | 6.0 h | – | 926 |
| Mar 13, 2019 | No storm report | 461 | 3% | 2.0 h | – | 922 |
| Aug 11, 2021 | No storm report | 203 | 1% | 4.5 h | – | 912 |
| Jun 19, 2025 | No storm report | 495 | 3% | 1.8 h | – | 865 |
| May 4, 2019 | No storm report | 485 | 3% | 1.8 h | – | 848 |
| Jun 23, 2025 | No storm report | 807 | 5% | 1.0 h | 1.0 h | 807 |
| Oct 22, 2018 | No storm report | 201 | 1% | 4.0 h | – | 804 |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Juneau from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 40%
- Thunderstorms 38%
- Winter storm 19%
- Tornadoes 2.5%
- Windstorm 0.7%
Who keeps the lights on
Utilities serving Juneau
As each utility reports to the Energy Information Administration for its whole Wisconsin territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Wisconsin Power & Light Co | Investor Owned | 96 | 75 | 0.79 | 18.5 | 441k |
| Vernon Electric Coop | WI | 188 | 125 | – | 14.5 | 123k |
| Oakdale Electric Coop | Cooperative | 118 | 84 | 1.11 | 15.9 | 17k |
| City of New Lisbon | WI | – | – | – | – | 5.5k |
| City of Elroy | WI | – | – | – | – | 5.3k |
| Wonewoc Electric & Water Util | WI | – | – | – | – | 3.0k |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 15,444 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →