Power Out Map
– 0% of Logan out 0 customers out in Illinois

Power outage history

Logan County Illinois

6.9hours

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

18th most of 101 in Illinois close to the national median

Worst outage on record Jun 29, 2023 50% of customers out · 90% back in 2.1 days
Hours without power, average customer per year 6.9h / yr State average 2.9 h · national median 6.6 h
Major outages a year 3.1 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 1hours Median across major outages, from the peak
Longest single outage 3.5days Jun 29, 2023, over 1% of customers out
Outage hours on storm days 68% Share falling on days with a NOAA storm report here
Worst year 2023 21 hours without power, average customer
Electricity customers 10,899 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 Logan'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

2023 was the worst well-recorded year, at 21 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Logan, hours without power per customer

LoganUS median countyIllinois average
0 5 10 15 20 25 4.4 ’15 6.3 ’16 1.9 ’17 2.3 ’18 5.2 ’19 7.6 ’20 5.6 ’21 5.5 ’22 21 ’23 4.8 ’24 3.0 ’25 US 6.6 IL 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
Jun 29, 2023 Thunderstorms 5,432 50% 3.5 d 2.1 d 198k
Apr 8, 2020 Thunderstorms 10,899 100% 42 h 22 h 66k
May 23, 2019 Thunderstorms 2,811 26% 21 h 13 h 29k
Apr 2, 2016 Windstorm 1,774 16% 29 h 30 min 27k
Oct 1, 2022 No storm report 2,740 25% 18 h 48 min 18k
Apr 20, 2015 No storm report 3,034 28% 4.2 h 11 h 12k
May 5, 2016 No storm report 3,303 30% 3.5 h 2.5 h 12k
Aug 1, 2024 Thunderstorms 1,569 14% 6.8 h 6.8 h 9.5k
Sep 10, 2015 No storm report 1,652 15% 6.0 h 2.2 h 9.5k
Aug 1, 2022 Tornadoes 2,013 18% 5.8 h 3.8 h 8.5k
Jan 1, 2021 Ice storm 560 5% 21 h 21 h 6.8k
Jan 3, 2021 No storm report 513 5% 22 h – 6.5k

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 +4h 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 Logan from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • Thunderstorms 63%
  • No storm on record 32%
  • Tornadoes 2.0%
  • Ice storm 1.3%
  • Windstorm 1.2%
  • Heat 0.8%

Who keeps the lights on

Utilities serving Logan

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Ameren Illinois Company Investor Owned 287 130 1.19 16.7 1.1M
Corn Belt Energy Corporation Cooperative 1,365 155 7.65 15.6 35k
Menard Electric Coop Cooperative 186 161 2.27 19.4 9.0k

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.

Next door

Neighbouring counties

Across Illinois

Where it is darkest

Hours / yr64+

All Illinois 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 10,899 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 →