Power outage history
Fulton County Illinois
3.7hours
without power for the average customer in a typical year, 2018–2025
61st most of 101 in Illinois 44% below the national median
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 Fulton's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2023 was the worst well-recorded year, at 7.6 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Fulton, hours without power per customer
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 19, 2021 | Thunderstorms | 3,557 | 27% | 39 h | 33 h | 58k |
| Jun 29, 2023 | Thunderstorms | 2,000 | 15% | 2.2 d | 45 h | 38k |
| Jul 15, 2024 | Thunderstorms | 2,998 | 23% | 25 h | 19 h | 38k |
| Apr 4, 2023 | Thunderstorms | 2,429 | 19% | 31 h | 23 h | 19k |
| Nov 25, 2018 | Winter storm | 1,301 | 10% | 15 h | 11 h | 13k |
| Dec 28, 2015 | Winter storm | 1,113 | 9% | 20 h | 18 h | 10k |
| Aug 10, 2020 | Thunderstorms | 1,425 | 11% | 21 h | 8.2 h | 9.9k |
| Nov 21, 2015 | No storm report | 1,426 | 11% | 8.8 h | 1.8 h | 8.3k |
| Nov 10, 2020 | No storm report | 1,247 | 10% | 12 h | 10 h | 8.3k |
| Jun 13, 2015 | No storm report | 2,680 | 21% | 2.8 h | 2.2 h | 6.9k |
| Oct 20, 2025 | No storm report | 776 | 6% | 9.8 h | 15 h | 5.7k |
| May 7, 2023 | Thunderstorms | 687 | 5% | 18 h | 17 h | 5.5k |
| Nov 26, 2025 | No storm report | 1,780 | 14% | 4.2 h | 4.2 h | 4.7k |
| Sep 1, 2022 | No storm report | 1,414 | 11% | 2.8 h | 7.5 h | 3.9k |
| Oct 24, 2022 | No storm report | 2,289 | 18% | 2.5 h | 3.0 h | 3.7k |
| Oct 5, 2023 | No storm report | 6,017 | 47% | 1.2 h | 1.0 h | 3.5k |
| Nov 22, 2016 | No storm report | 922 | 7% | 4.2 h | 2.0 h | 3.1k |
| Apr 20, 2025 | Thunderstorms | 2,252 | 17% | 3.5 h | 3.0 h | 3.1k |
| Apr 8, 2023 | No storm report | 1,316 | 10% | 2.2 h | 11 h | 3.0k |
| May 25, 2019 | Thunderstorms | 422 | 3% | 9.5 h | – | 2.8k |
| Feb 22, 2016 | No storm report | 2,215 | 17% | 1.2 h | 1.2 h | 2.8k |
| Jun 21, 2021 | No storm report | 660 | 5% | 4.2 h | 4.2 h | 2.5k |
| Mar 9, 2020 | No storm report | 259 | 2% | 9.5 h | – | 2.5k |
| Jan 15, 2022 | No storm report | 672 | 5% | 3.5 h | 3.8 h | 2.4k |
| Jan 3, 2017 | No storm report | 465 | 4% | 7.0 h | – | 2.3k |
| Mar 19, 2025 | Thunderstorms | 459 | 4% | 6.8 h | – | 2.2k |
| Jun 25, 2019 | Thunderstorms | 503 | 4% | 6.2 h | – | 2.2k |
| Oct 25, 2023 | No storm report | 664 | 5% | 4.8 h | 13 h | 2.1k |
| Feb 14, 2016 | No storm report | 1,625 | 13% | 1.5 h | 12 min | 2.1k |
| Mar 23, 2019 | No storm report | 1,951 | 15% | 1.5 h | 1.2 h | 2.0k |
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.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Fulton from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 60%
- No storm on record 34%
- Winter storm 4.5%
- Windstorm 0.9%
Who keeps the lights on
Utilities serving Fulton
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 |
| McDonough Power Coop | IL | – | – | – | – | 55k |
| Spoon River Electric Coop, Inc | IL | – | – | – | – | 47k |
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.
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 12,940 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 →