Power Out Map
– 0% of Mahnomen out 0 customers out in Minnesota

Power outage history

Mahnomen County Minnesota

7.7hours

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

1.2× the national median

Worst outage on record Oct 11, 2025 6% of customers out · 90% back in 40 hours
Hours without power, average customer per year 7.7h / yr State average 2.9 h · national median 6.6 h
Major outages a year 2.0 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 7hours Median across major outages, from the peak
Longest single outage 46hours Oct 11, 2025, over 1% of customers out
Outage hours on storm days 32% Share falling on days with a NOAA storm report here
Worst year 2025 7.7 hours without power, average customer
Electricity customers 4,068 ORNL customer model · 1 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 Mahnomen'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

2025 was the worst well-recorded year, at 7.7 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Mahnomen, hours without power per customer

MahnomenUS median countyMinnesota average
0 2 4 6 8 10 ’20 ’21 ’22 ’23 ’24 7.7 ’25 US 6.6 MN 2.9

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
Oct 11, 2025 No storm report 262 6% 46 h 40 h 12k
Jun 20, 2025 Thunderstorms 1,070 26% 12 h 11 h 11k
Apr 22, 2022 No storm report 367 9% 5.8 h 5.8 h 2.1k
Jul 27, 2023 No storm report 787 19% 2.0 h 2.0 h 1.6k
Sep 28, 2023 No storm report 207 5% 4.8 h 4.8 h 983
Oct 27, 2023 No storm report 281 7% 3.2 h 2.8 h 698
Jul 10, 2025 No storm report 113 3% 11 h – 650
Jan 12, 2024 No storm report 156 4% 3.8 h – 585
Feb 28, 2025 No storm report 296 7% 6.8 h 6.8 h 562
Jun 20, 2022 Thunderstorms 367 9% 1.5 h 1.5 h 550
Jul 14, 2024 No storm report 292 7% 1.5 h 1.5 h 438
Jun 19, 2025 No storm report 141 3% 3.0 h – 413

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 +4h

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 Mahnomen from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 68%
  • Thunderstorms 31%
  • Winter storm 0.5%

Who keeps the lights on

Utilities serving Mahnomen

As each utility reports to the Energy Information Administration for its whole Minnesota territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Clearwater-Polk Elec Coop Inc MN 116 116 0.43 13.6 63k
Otter Tail Power Co Investor Owned 557 136 1.74 11.3 50k
Wild Rice Electric Coop, Inc Cooperative 688 259 2.67 14.7 14k

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 Minnesota

Where it is darkest

Hours / yr64+

All Minnesota 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 4,068 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 →