Power outage history
Warren County Ohio
3.4hours
without power for the average customer in a typical year, 2018–2025
67th most of 88 in Ohio 48% 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 Warren's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2022 was the worst well-recorded year, at 7.2 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Warren, 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 13, 2022 | Thunderstorms | 32,564 | 28% | 46 h | 29 h | 522k |
| Sep 27, 2024 | Hurricane Helene | 20,993 | 18% | 2.3 d | 7.8 h | 446k |
| Jun 18, 2021 | Thunderstorms | 15,895 | 14% | 16 h | 6.5 h | 128k |
| Jun 23, 2016 | Thunderstorms | 16,808 | 15% | 17 h | 14 h | 95k |
| Nov 15, 2018 | Ice storm | 6,663 | 6% | 30 h | 26 h | 89k |
| Jun 18, 2025 | Thunderstorms | 11,596 | 10% | 16 h | 9.5 h | 85k |
| Apr 2, 2016 | No storm report | 6,420 | 6% | 21 h | 14 h | 76k |
| Dec 23, 2022 | Winter storm | 4,570 | 4% | 24 h | – | 59k |
| Apr 3, 2025 | Tornadoes | 7,972 | 7% | 17 h | 15 h | 58k |
| Nov 15, 2020 | No storm report | 7,686 | 7% | 7.2 h | 5.5 h | 38k |
| Jul 30, 2024 | Thunderstorms | 5,418 | 5% | 10 h | 8.8 h | 32k |
| Dec 18, 2025 | No storm report | 2,696 | 2% | 14 h | – | 24k |
| Jun 19, 2018 | No storm report | 3,154 | 3% | 8.2 h | – | 18k |
| Sep 5, 2022 | Flooding | 4,438 | 4% | 4.0 h | – | 16k |
| Mar 30, 2025 | Thunderstorms | 2,809 | 2% | 8.5 h | – | 16k |
| May 14, 2018 | No storm report | 3,516 | 3% | 4.5 h | – | 16k |
| Aug 27, 2016 | Thunderstorms | 3,343 | 3% | 5.8 h | – | 15k |
| Dec 31, 2017 | No storm report | 4,417 | 4% | 5.5 h | – | 15k |
| Jun 16, 2021 | No storm report | 3,665 | 3% | 4.0 h | – | 15k |
| Dec 24, 2015 | No storm report | 3,439 | 3% | 7.0 h | – | 14k |
| Jul 2, 2019 | Thunderstorms | 4,577 | 4% | 8.8 h | – | 14k |
| Dec 30, 2019 | Windstorm | 4,888 | 4% | 3.5 h | – | 14k |
| Feb 3, 2016 | No storm report | 5,470 | 5% | 4.5 h | 1.8 h | 13k |
| Jul 14, 2024 | Thunderstorms | 3,166 | 3% | 5.2 h | – | 13k |
| Feb 19, 2016 | No storm report | 3,769 | 3% | 5.0 h | – | 12k |
| Aug 30, 2015 | No storm report | 17,341 | 15% | 2.5 h | 30 min | 12k |
| Aug 24, 2023 | No storm report | 3,438 | 3% | 4.0 h | – | 11k |
| Aug 15, 2016 | Thunderstorms | 2,440 | 2% | 6.0 h | – | 11k |
| Nov 19, 2022 | No storm report | 1,959 | 2% | 5.5 h | – | 11k |
| Aug 30, 2015 | No storm report | 3,441 | 3% | 3.5 h | – | 11k |
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 Warren from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 42%
- No storm on record 23%
- Tropical storm 22%
- Ice storm 4.3%
- Winter storm 3.3%
- Tornadoes 3.2%
- Flooding 1.5%
- Windstorm 1.1%
Who keeps the lights on
Utilities serving Warren
As each utility reports to the Energy Information Administration for its whole Ohio 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 Ohio Inc | Investor Owned | 178 | 108 | 1.01 | 16.8 | 700k |
| Dayton Power & Light Co | Investor Owned | 168 | 97 | 0.99 | 16.1 | 469k |
| City of Lebanon | Municipal | – | – | – | 12.1 | 8.9k |
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
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 115,421 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 →