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

Power outage history

Franklin County Illinois

6.1hours

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

25th most of 101 in Illinois close to the national median

Worst outage on record Jun 29, 2018 21% of customers out · 90% back in 39 hours
Hours without power, average customer per year 6.1h / yr State average 2.9 h · national median 6.6 h
Major outages a year 3.6 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 3.7days Jan 5, 2025, over 1% of customers out
Outage hours on storm days 52% Share falling on days with a NOAA storm report here
Worst year 2018 14 hours without power, average customer
Electricity customers 19,260 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 Franklin'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

2018 was the worst well-recorded year, at 14 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Franklin, hours without power per customer

FranklinUS median countyIllinois average
0 5 10 15 20 1.6 ’15 2.8 ’16 1.4 ’17 14 ’18 7.2 ’19 3.0 ’20 3.4 ’21 2.4 ’22 4.0 ’23 4.3 ’24 10 ’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 28, 2018 Thunderstorms 4,074 21% 2.2 d 39 h 108k
Jan 5, 2025 Winter storm 1,711 9% 3.7 d 3.5 d 75k
Jun 24, 2018 No storm report 2,454 13% 16 h 8.8 h 36k
Mar 14, 2025 Windstorm 5,153 27% 12 h 7.5 h 35k
Jul 13, 2016 Thunderstorms 4,327 22% 20 h 12 min 19k
Jul 29, 2023 Thunderstorms 3,099 16% 15 h 10 h 17k
May 26, 2024 Thunderstorms 2,243 12% 23 h 14 h 16k
Aug 10, 2020 Thunderstorms 4,665 24% 16 h 6.5 h 16k
Aug 30, 2019 No storm report 2,163 11% 12 h 9.2 h 15k
Dec 5, 2021 Tornadoes 1,801 9% 14 h 14 h 15k
Jun 17, 2022 Thunderstorms 3,761 20% 8.0 h 6.2 h 14k
Apr 29, 2025 No storm report 2,273 12% 15 h 13 h 14k

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 +10h

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

  • No storm on record 48%
  • Thunderstorms 27%
  • Winter storm 11%
  • Windstorm 7.4%
  • Flooding 2.3%
  • Tornadoes 1.9%
  • Heat 1.8%
  • Tropical storm 0.7%

Who keeps the lights on

Utilities serving Franklin

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
Southeastern IL Elec Coop, Inc Cooperative 2,214 172 3.95 14.8 23k
Tri-County Electric Coop, Inc (IL) Cooperative 132 63 1.64 16.2 16k
Egyptian Electric Coop Assn Cooperative 773 24 4.62 16.2 14k
Wayne-White Counties Elec Coop Cooperative – – – 16.4 12k

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 19,260 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 →