Power outage history
Clermont County Ohio
6.9hours
without power for the average customer in a typical year, 2018–2025
31st most of 88 in Ohio close to 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 Clermont'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 14 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Clermont, 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 |
|---|---|---|---|---|---|---|
| Jul 6, 2022 | Thunderstorms | 21,010 | 23% | 3.0 d | 2.2 d | 695k |
| Sep 27, 2024 | Hurricane Helene | 19,484 | 21% | 3.1 d | 6.8 h | 538k |
| Apr 8, 2020 | Thunderstorms | 14,938 | 16% | 46 h | 35 h | 247k |
| Apr 3, 2025 | Thunderstorms | 13,669 | 15% | 36 h | 13 h | 222k |
| Mar 1, 2017 | Thunderstorms | 11,082 | 12% | 44 h | 37 h | 217k |
| Mar 3, 2023 | Tornadoes | 13,080 | 14% | 28 h | 24 h | 189k |
| Jun 13, 2022 | Thunderstorms | 16,663 | 18% | 25 h | 22 h | 175k |
| Nov 15, 2018 | Ice storm | 11,319 | 12% | 27 h | 18 h | 157k |
| Apr 2, 2016 | No storm report | 12,598 | 14% | 28 h | 27 h | 135k |
| May 31, 2018 | Tropical Storm Alberto | 14,434 | 16% | 23 h | 20 h | 118k |
| Jul 14, 2015 | No storm report | 17,977 | 20% | 28 h | 8.5 h | 114k |
| Nov 5, 2022 | No storm report | 18,327 | 20% | 8.2 h | 3.2 h | 65k |
| Feb 3, 2022 | Winter storm | 6,713 | 7% | 23 h | 21 h | 57k |
| Jun 18, 2025 | No storm report | 4,894 | 5% | 20 h | 20 h | 55k |
| Jun 18, 2021 | Thunderstorms | 9,133 | 10% | 8.2 h | 5.8 h | 48k |
| Jul 7, 2017 | No storm report | 3,786 | 4% | 16 h | – | 43k |
| Aug 15, 2021 | No storm report | 15,708 | 17% | 3.5 h | 3.5 h | 41k |
| Jun 29, 2024 | Thunderstorms | 6,496 | 7% | 9.2 h | 8.2 h | 41k |
| May 19, 2022 | Thunderstorms | 4,780 | 5% | 16 h | 21 h | 40k |
| Jun 23, 2016 | No storm report | 13,556 | 15% | 7.2 h | 7.0 h | 40k |
| Mar 14, 2019 | Thunderstorms | 5,873 | 6% | 17 h | 12 h | 39k |
| Mar 25, 2023 | No storm report | 6,758 | 7% | 11 h | 7.2 h | 35k |
| Dec 9, 2024 | No storm report | 11,209 | 12% | 4.8 h | 4.2 h | 31k |
| Apr 1, 2023 | Thunderstorms | 4,881 | 5% | 8.2 h | 4.5 h | 30k |
| Feb 9, 2023 | Windstorm | 5,076 | 6% | 9.2 h | 5.8 h | 30k |
| Nov 15, 2020 | Windstorm | 7,103 | 8% | 7.0 h | 5.5 h | 30k |
| Mar 31, 2022 | Windstorm | 6,474 | 7% | 8.5 h | 6.5 h | 29k |
| Oct 20, 2018 | No storm report | 2,994 | 3% | 13 h | – | 24k |
| Mar 21, 2017 | No storm report | 9,210 | 10% | 5.2 h | 2.5 h | 24k |
| Feb 25, 2018 | Tornadoes | 2,611 | 3% | 13 h | – | 24k |
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 Clermont from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 44%
- No storm on record 24%
- Tropical storm 17%
- Tornadoes 5.4%
- Ice storm 4.0%
- Windstorm 2.8%
- Winter storm 2.1%
- Flooding 0.6%
Who keeps the lights on
Utilities serving Clermont
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 |
| South Central Power Company | Cooperative | 298 | 198 | 2.83 | 15.4 | 118k |
| Village of Bethel | OH | – | – | – | – | 16k |
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
- Bracken, KY 14 h
- Brown 8.8 h
- Clinton 7.0 h
- Clermont (this county) 6.9 h
- Pendleton, KY 6.5 h
- Campbell, KY 4.1 h
- Hamilton 3.8 h
- Warren 3.4 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 91,802 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 →