Power outage history
Marquette County Wisconsin
5.9hours
without power for the average customer in a typical year, 2018–2025
16th most of 72 in Wisconsin close to 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 Marquette's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2018 was the worst well-recorded year, at 18 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Marquette, 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 |
|---|---|---|---|---|---|---|
| Aug 28, 2018 | Tornadoes | 5,520 | 62% | 2.6 d | 39 h | 116k |
| Jun 15, 2022 | Thunderstorms | 2,503 | 28% | 43 h | 32 h | 59k |
| Jun 14, 2017 | Thunderstorms | 3,847 | 43% | 19 h | 14 h | 21k |
| Nov 27, 2019 | Windstorm | 1,062 | 12% | 31 h | 25 h | 12k |
| Jul 11, 2018 | No storm report | 639 | 7% | 21 h | 17 h | 11k |
| Dec 15, 2021 | Windstorm | 2,055 | 23% | 12 h | 3.5 h | 9.8k |
| Aug 16, 2025 | Thunderstorms | 1,774 | 20% | 20 h | 5.8 h | 9.1k |
| May 15, 2021 | No storm report | 1,010 | 11% | 8.5 h | 8.2 h | 8.5k |
| Jul 29, 2021 | No storm report | 1,002 | 11% | 8.2 h | 7.2 h | 7.2k |
| Dec 5, 2017 | Windstorm | 1,020 | 12% | 6.5 h | 3.8 h | 6.4k |
| Jun 23, 2025 | Thunderstorms | 2,473 | 28% | 5.5 h | 5.0 h | 6.1k |
| Dec 26, 2019 | No storm report | 918 | 10% | 8.8 h | 8.8 h | 5.9k |
| Jul 23, 2022 | Thunderstorms | 1,172 | 13% | 11 h | 10 h | 5.6k |
| Apr 14, 2018 | Winter storm | 2,503 | 28% | 13 h | 2.5 h | 5.5k |
| Jul 30, 2021 | No storm report | 861 | 10% | 8.5 h | 8.2 h | 5.4k |
| May 22, 2019 | No storm report | 1,169 | 13% | 5.5 h | 4.8 h | 5.2k |
| May 1, 2019 | No storm report | 1,232 | 14% | 3.5 h | 3.5 h | 4.3k |
| Oct 4, 2018 | No storm report | 924 | 10% | 5.0 h | 5.0 h | 4.2k |
| Jul 28, 2023 | No storm report | 545 | 6% | 13 h | 10 h | 3.5k |
| Dec 30, 2017 | Winter storm | 919 | 10% | 3.8 h | 5.0 h | 3.4k |
| Jan 14, 2024 | Winter storm | 1,511 | 17% | 2.2 h | 2.2 h | 3.4k |
| Dec 15, 2022 | Winter storm | 495 | 6% | 12 h | 6.0 h | 3.1k |
| Feb 10, 2019 | No storm report | 917 | 10% | 3.2 h | 3.5 h | 3.0k |
| Jul 25, 2023 | No storm report | 1,074 | 12% | 2.8 h | 2.2 h | 3.0k |
| Jul 19, 2017 | No storm report | 1,038 | 12% | 6.8 h | 5.0 h | 2.9k |
| Apr 2, 2024 | Winter storm | 708 | 8% | 8.0 h | 12 min | 2.6k |
| Oct 28, 2018 | No storm report | 950 | 11% | 2.8 h | 48 min | 2.6k |
| Sep 21, 2018 | No storm report | 222 | 3% | 17 h | – | 2.5k |
| Feb 8, 2019 | No storm report | 917 | 10% | 2.8 h | 4.0 h | 2.5k |
| Aug 11, 2023 | No storm report | 763 | 9% | 5.2 h | 2.8 h | 2.2k |
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 Marquette from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 33%
- Tornadoes 32%
- Thunderstorms 23%
- Windstorm 5.9%
- Winter storm 5.1%
Who keeps the lights on
Utilities serving Marquette
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 |
| Adams-Columbia Electric Coop | Cooperative | 108 | 66 | 0.87 | 19.0 | 36k |
| Pioneer Power and Light Co | Investor Owned | – | – | – | 16.8 | 2.0k |
| Westfield Electric Company | Investor Owned | – | – | – | 17.3 | 622 |
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.
Next door
Neighbouring counties
- Marquette (this county) 5.9 h
- Waushara 3.3 h
- Green Lake 2.8 h
- Adams 2.8 h
- Columbia 1.4 h
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 8,847 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 →