Power outage history
Jefferson County Indiana
9.1hours
without power for the average customer in a typical year, 2018–2025
8th most of 90 in Indiana 1.4× 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 Jefferson's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2018 was the worst well-recorded year, at 29 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Jefferson, 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 |
|---|---|---|---|---|---|---|
| Nov 15, 2018 | Ice storm | 8,597 | 54% | 3.4 d | 2.4 d | 310k |
| Jun 18, 2021 | Flooding | 4,131 | 26% | 35 h | 12 h | 61k |
| Mar 1, 2017 | Thunderstorms | 5,228 | 33% | 37 h | 27 h | 54k |
| Jul 17, 2015 | Thunderstorms | 3,312 | 21% | 26 h | 21 h | 50k |
| May 20, 2017 | Thunderstorms | 3,559 | 22% | 24 h | 17 h | 32k |
| Jul 1, 2023 | Thunderstorms | 4,374 | 27% | 16 h | 11 h | 32k |
| May 31, 2018 | Tropical Storm Alberto | 1,570 | 10% | 28 h | 26 h | 25k |
| Jun 25, 2024 | No storm report | 3,941 | 25% | 23 h | 14 h | 25k |
| Jul 14, 2015 | Flooding | 1,530 | 10% | 31 h | 27 h | 20k |
| Jun 29, 2023 | No storm report | 826 | 5% | 25 h | 5.5 h | 20k |
| Apr 10, 2015 | Thunderstorms | 1,860 | 12% | 16 h | 9.8 h | 18k |
| Apr 3, 2025 | Thunderstorms | 1,239 | 8% | 20 h | 10 h | 18k |
| Jul 7, 2017 | Thunderstorms | 2,315 | 15% | 24 h | 23 h | 17k |
| Jun 17, 2022 | Thunderstorms | 1,973 | 12% | 13 h | 10 h | 15k |
| Mar 14, 2024 | Tornadoes | 2,596 | 16% | 7.8 h | 5.2 h | 15k |
| Nov 11, 2020 | No storm report | 774 | 5% | 19 h | – | 14k |
| Jan 31, 2015 | No storm report | 2,917 | 18% | 8.0 h | 5.5 h | 14k |
| Sep 27, 2024 | Hurricane Helene | 1,349 | 8% | 28 h | 20 h | 13k |
| Jun 8, 2018 | No storm report | 865 | 5% | 17 h | 17 h | 13k |
| Jun 17, 2025 | No storm report | 822 | 5% | 16 h | 1.0 h | 13k |
| Jan 22, 2025 | No storm report | 1,541 | 10% | 15 h | 11 h | 13k |
| Aug 22, 2017 | No storm report | 2,391 | 15% | 8.2 h | 4.8 h | 11k |
| Nov 20, 2018 | No storm report | 3,508 | 22% | 3.8 h | 2.5 h | 11k |
| Oct 20, 2018 | No storm report | 960 | 6% | 18 h | 17 h | 9.1k |
| Jan 22, 2021 | No storm report | 2,465 | 15% | 13 h | 11 h | 8.6k |
| Dec 11, 2021 | No storm report | 1,238 | 8% | 12 h | 2.0 h | 8.5k |
| Nov 27, 2024 | No storm report | 622 | 4% | 13 h | – | 8.2k |
| Jul 8, 2016 | Thunderstorms | 1,555 | 10% | 8.0 h | 5.5 h | 7.0k |
| Oct 27, 2025 | No storm report | 2,134 | 13% | 3.2 h | 1.8 h | 6.9k |
| Jan 25, 2018 | No storm report | 4,159 | 26% | 1.8 h | 1.0 h | 6.6k |
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.
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 Jefferson from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 44%
- Ice storm 32%
- Thunderstorms 10%
- Flooding 6.6%
- Tropical storm 4.1%
- Tornadoes 1.8%
Who keeps the lights on
Utilities serving Jefferson
As each utility reports to the Energy Information Administration for its whole Indiana territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Duke Energy Indiana, LLC | Investor Owned | 267 | 108 | 1.26 | 15.0 | 809k |
| Clark County Rural E M C | Cooperative | 210 | 76 | 1.26 | 14.3 | 28k |
| Southeastern Indiana R E M C | Cooperative | 346 | 323 | 2.07 | 15.6 | 26k |
| Jackson County Rural E M C | Cooperative | 476 | 163 | 2.69 | 14.4 | 24k |
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
- Trimble, KY 9.1 h
- Jefferson (this county) 9.1 h
- Switzerland 5.1 h
- Jennings 4.6 h
- Clark 4.3 h
- Ripley 3.5 h
- Carroll, KY 3.4 h
- Scott 2.2 h
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 15,913 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 →