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

Power outage history

Jasper County Illinois

4.9hours

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

46th most of 101 in Illinois 26% below the national median

Worst outage on record Apr 8, 2020 47% of customers out · 90% back in 21 hours
Hours without power, average customer per year 4.9h / yr State average 2.9 h · national median 6.6 h
Major outages a year 5.3 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 45hours Jun 15, 2016, over 1% of customers out
Outage hours on storm days 16% Share falling on days with a NOAA storm report here
Worst year 2020 7.7 hours without power, average customer
Electricity customers 4,528 ORNL customer model · 7 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 Jasper'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 7.7 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Jasper, hours without power per customer

JasperUS median countyIllinois average
0 2 4 6 8 10 ’15 3.7 ’16 ’17 ’18 1.8 ’19 7.7 ’20 2.0 ’21 6.8 ’22 7.2 ’23 3.3 ’24 5.4 ’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 No storm report 2,118 47% 29 h 21 h 21k
Jun 15, 2016 Thunderstorms 314 7% 45 h 45 h 14k
Mar 31, 2023 Tornadoes 949 21% 25 h 30 h 10k
Jun 17, 2022 No storm report 1,565 35% 7.0 h 3.5 h 8.4k
Jun 18, 2025 No storm report 2,008 44% 5.2 h 3.8 h 6.1k
Apr 5, 2023 No storm report 2,356 52% 6.5 h 3.0 h 5.1k
Dec 8, 2019 No storm report 591 13% 21 h 19 h 4.5k
Apr 19, 2025 No storm report 592 13% 9.8 h 9.2 h 3.5k
Jul 19, 2022 No storm report 1,220 27% 3.8 h 2.2 h 3.4k
Mar 24, 2023 No storm report 1,262 28% 2.8 h 2.2 h 3.4k
Aug 6, 2023 No storm report 849 19% 17 h 2.0 h 2.9k
Feb 22, 2023 Thunderstorms 1,206 27% 2.2 h 1.2 h 2.7k

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

  • No storm on record 84%
  • Tornadoes 8.2%
  • Thunderstorms 5.8%
  • Tropical storm 1.7%
  • Flooding 0.6%

Who keeps the lights on

Utilities serving Jasper

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
Clay Electric Coop Inc IL 699 – 0.22 – 37k
Norris Electric Coop Cooperative – – – 15.1 18k
City of Newton IL – – – – 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 4,528 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 →