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

Power outage history

Lawrence County Illinois

5.4hours

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

38th most of 101 in Illinois 18% below the national median

Worst outage on record Apr 9, 2020 63% of customers out · 90% back in 20 hours
Hours without power, average customer per year 5.4h / yr State average 2.9 h · national median 6.6 h
Major outages a year 3.0 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 3hours Median across major outages, from the peak
Longest single outage 2.3days Jun 29, 2023, over 1% of customers out
Outage hours on storm days 60% Share falling on days with a NOAA storm report here
Worst year 2020 12 hours without power, average customer
Electricity customers 7,796 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 Lawrence'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

2020 was the worst well-recorded year, at 12 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Lawrence, hours without power per customer

LawrenceUS median countyIllinois average
0 5 10 15 1.7 ’15 3.8 ’16 1.2 ’17 1.9 ’18 2.5 ’19 12 ’20 1.5 ’21 6.0 ’22 9.0 ’23 5.1 ’24 4.5 ’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
Apr 8, 2020 Thunderstorms 4,876 63% 32 h 20 h 83k
Jun 29, 2023 Thunderstorms 1,706 22% 2.3 d 26 h 29k
Mar 31, 2023 No storm report 5,212 67% 8.0 h 3.8 h 20k
Jun 18, 2025 Thunderstorms 1,321 17% 12 h 8.0 h 11k
May 19, 2022 Thunderstorms 947 12% 11 h 20 h 9.7k
Jun 22, 2015 No storm report 2,049 26% 16 h 16 h 9.5k
May 26, 2024 Tornadoes 3,176 41% 7.5 h 5.2 h 9.3k
Sep 11, 2018 No storm report 5,250 67% 1.8 h 1.5 h 7.0k
Dec 6, 2022 No storm report 1,007 13% 7.2 h 4.0 h 6.8k
Jul 30, 2024 Thunderstorms 2,322 30% 5.5 h 3.8 h 6.8k
May 7, 2016 Thunderstorms 491 6% 15 h 12 h 6.3k
Apr 28, 2017 Thunderstorms 771 10% 12 h 12 h 5.6k

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 +6h 90% by +12h

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

  • Thunderstorms 53%
  • No storm on record 40%
  • Tornadoes 3.1%
  • Heat 1.7%
  • Flooding 1.3%
  • Tropical storm 0.8%

Who keeps the lights on

Utilities serving Lawrence

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
Norris Electric Coop Cooperative – – – 15.1 18k

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 7,796 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 →