Power Out Map
– 0% of Calumet out 0 customers out in Wisconsin

Power outage history

Calumet County Wisconsin

3.1hours

without power for the average customer in a typical year, 2018–2025

36th most of 72 in Wisconsin 53% below the national median

Worst outage on record Apr 3, 2024 33% of customers out · 90% back in 29 hours
Hours without power, average customer per year 3.1h / yr State average 3.5 h · national median 6.6 h
Major outages a year 1.1 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 2hours Median across major outages, from the peak
Longest single outage 2.0days Apr 2, 2024, over 1% of customers out
Outage hours on storm days 76% Share falling on days with a NOAA storm report here
Worst year 2024 10 hours without power, average customer
Electricity customers 17,941 ORNL customer model · 8 well-covered years

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 Calumet's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2024 was the worst well-recorded year, at 10 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Calumet, hours without power per customer

CalumetUS median countyWisconsin average
0 2 4 6 8 10 12 2.4 ’15 1.0 ’16 2.3 ’17 1.2 ’18 7.7 ’19 0.9 ’20 1.6 ’21 1.1 ’22 0.7 ’23 10 ’24 1.1 ’25 US 6.6 WI 3.5

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
Apr 2, 2024 Winter storm 5,848 33% 2.0 d 29 h 153k
Jul 20, 2019 Thunderstorms 5,014 28% 45 h 33 h 106k
May 21, 2024 No storm report 2,028 11% 8.0 h 2.2 h 12k
Dec 1, 2019 Winter storm 6,074 34% 9.0 h 1.5 h 10k
Jun 14, 2017 Thunderstorms 1,210 7% 17 h 18 h 10k
Nov 6, 2021 No storm report 1,552 9% 5.0 h 6.2 h 7.7k
Aug 8, 2021 No storm report 4,341 24% 2.2 h 1.5 h 6.4k
Nov 27, 2015 No storm report 3,519 20% 2.0 h 1.5 h 5.6k
Jun 23, 2025 Heat 2,246 13% 3.0 h 1.0 h 5.3k
Mar 27, 2022 No storm report 907 5% 5.8 h 8.5 h 5.2k
May 17, 2017 Thunderstorms 1,052 6% 6.5 h 4.2 h 5.2k
Jun 12, 2017 Thunderstorms 791 4% 11 h – 5.0k

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.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +2h 90% by +6h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for Calumet from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • Winter storm 44%
  • Thunderstorms 30%
  • No storm on record 24%
  • Heat 1.4%
  • Flooding 0.7%

Who keeps the lights on

Utilities serving Calumet

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 Electric Power Co Investor Owned 185 93 0.90 20.5 1.1M
Wisconsin Power & Light Co Investor Owned 96 75 0.79 18.5 441k
Wisconsin Public Service Corp Investor Owned 630 107 1.44 17.2 416k
City of Menasha Municipal 22 22 0.07 13.2 8.7k
City of New Holstein Municipal 29 0 0.52 14.1 2.2k

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

Across Wisconsin

Where it is darkest

Hours / yr64+

All Wisconsin counties →

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 17,941 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 →