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

Power outage history

Lake County Minnesota

7.3hours

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

5th most of 54 in Minnesota close to the national median

Worst outage on record Apr 11, 2019 47% of customers out · 90% back in 5.3 days
Hours without power, average customer per year 7.3h / yr State average 2.9 h · national median 6.6 h
Major outages a year 2.1 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 8.0days Jul 21, 2016, over 1% of customers out
Outage hours on storm days 26% Share falling on days with a NOAA storm report here
Worst year 2019 28 hours without power, average customer
Electricity customers 5,952 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 Lake'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

2019 was the worst well-recorded year, at 28 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Lake, hours without power per customer

LakeUS median countyMinnesota average
0 10 20 30 40 ’15 13 ’16 ’17 8.2 ’18 28 ’19 2.1 ’20 3.2 ’21 5.5 ’22 6.9 ’23 1.8 ’24 2.8 ’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
Apr 10, 2019 No storm report 2,787 47% 7.0 d 5.3 d 146k
Jul 21, 2016 Thunderstorms 432 7% 8.0 d 4.9 d 64k
Jun 29, 2018 Thunderstorms 910 15% 2.9 d 48 min 17k
Jun 20, 2022 Thunderstorms 756 13% 2.5 d 2.4 d 16k
May 29, 2018 Thunderstorms 463 8% 38 h 19 h 14k
Apr 2, 2023 No storm report 1,113 19% 11 h 11 h 12k
Jul 23, 2021 Thunderstorms 1,100 18% 39 h 6.2 h 10k
Apr 20, 2023 Winter storm 1,114 19% 8.0 h 8.2 h 8.9k
Jun 25, 2022 No storm report 1,175 20% 8.8 h 1.2 h 6.4k
Feb 18, 2025 Winter storm 1,149 19% 6.8 h 5.0 h 5.8k
Apr 4, 2023 Winter storm 1,114 19% 4.8 h 9.8 h 5.2k
Apr 13, 2018 No storm report 950 16% 16 h 12 min 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 +10h 90% by +16h

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

  • No storm on record 74%
  • Thunderstorms 18%
  • Winter storm 7.6%

Who keeps the lights on

Utilities serving Lake

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
ALLETE, Inc. Investor Owned 143 102 1.23 15.9 127k
Cooperative L&P Assn Lake County MN 508 508 2.88 13.5 60k
Lake Country Power Cooperative 415 141 2.32 18.3 47k
Arrowhead Electric Coop, Inc MN 96 – 2.79 14.7 47k
City of Two Harbors MN – – – – 10k

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 5,952 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 →