Power outage history
Grayson County Kentucky
12hours
without power for the average customer in a typical year, 2018–2025
36th most of 119 in Kentucky 1.8× 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 Grayson'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 2.4 days for the average customer. Hatched years have a thin record and are left out of the averages.
Grayson, 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 |
|---|---|---|---|---|---|---|
| Mar 3, 2023 | Windstorm | 7,732 | 54% | 6.3 d | 5.0 d | 449k |
| Jun 25, 2023 | Thunderstorms | 7,810 | 55% | 3.9 d | 2.3 d | 318k |
| Nov 14, 2018 | Ice storm | 3,776 | 26% | 43 h | 39 h | 74k |
| May 26, 2024 | Thunderstorms | 1,244 | 9% | 2.1 d | 47 h | 26k |
| Apr 13, 2022 | No storm report | 1,425 | 10% | 26 h | 21 h | 17k |
| Feb 19, 2021 | No storm report | 7,095 | 50% | 2.8 h | 1.5 h | 14k |
| Apr 3, 2018 | Thunderstorms | 1,027 | 7% | 14 h | 12 h | 13k |
| Dec 23, 2022 | Winter storm | 1,794 | 13% | 17 h | 7.2 h | 12k |
| Jul 30, 2024 | Thunderstorms | 4,166 | 29% | 9.0 h | 4.2 h | 11k |
| Jan 21, 2025 | No storm report | 7,331 | 51% | 1.5 h | 2.0 h | 8.2k |
| Sep 27, 2024 | Hurricane Helene | 2,031 | 14% | 11 h | 6.8 h | 8.0k |
| Jul 21, 2022 | No storm report | 1,458 | 10% | 8.2 h | 7.0 h | 7.7k |
| Jun 18, 2025 | Thunderstorms | 967 | 7% | 13 h | 9.0 h | 6.6k |
| Nov 20, 2024 | No storm report | 1,761 | 12% | 5.0 h | 1.0 h | 5.8k |
| Jan 5, 2025 | Winter storm | 783 | 5% | 18 h | 17 h | 5.6k |
| Jun 24, 2025 | No storm report | 627 | 4% | 8.8 h | – | 5.4k |
| Apr 16, 2023 | No storm report | 955 | 7% | 8.2 h | 30 min | 4.9k |
| Jan 22, 2025 | No storm report | 1,500 | 11% | 5.5 h | 2.2 h | 4.8k |
| Jul 27, 2022 | No storm report | 995 | 7% | 14 h | 7.2 h | 4.6k |
| Nov 5, 2017 | No storm report | 2,533 | 18% | 1.8 h | 6.2 h | 4.4k |
| Jan 21, 2024 | No storm report | 1,698 | 12% | 5.0 h | 3.0 h | 4.4k |
| Jun 23, 2025 | No storm report | 615 | 4% | 6.5 h | – | 4.0k |
| May 16, 2025 | No storm report | 1,767 | 12% | 4.0 h | 2.8 h | 4.0k |
| Jul 10, 2024 | Hurricane Beryl | 1,733 | 12% | 2.2 h | 6.2 h | 3.9k |
| Mar 16, 2019 | No storm report | 2,574 | 18% | 1.5 h | 12 min | 3.9k |
| Mar 14, 2019 | No storm report | 942 | 7% | 11 h | 5.0 h | 3.8k |
| May 18, 2020 | No storm report | 2,530 | 18% | 1.5 h | 9.5 h | 3.7k |
| Dec 28, 2025 | No storm report | 1,481 | 10% | 3.2 h | 1.8 h | 3.5k |
| Sep 2, 2023 | No storm report | 778 | 5% | 4.5 h | 30 min | 3.5k |
| Apr 12, 2022 | No storm report | 595 | 4% | 12 h | – | 3.5k |
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 Grayson from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Windstorm 38%
- Thunderstorms 32%
- No storm on record 21%
- Ice storm 6.2%
- Winter storm 1.5%
- Tropical storm 1.3%
Who keeps the lights on
Utilities serving Grayson
As each utility reports to the Energy Information Administration for its whole Kentucky territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Kentucky Utilities Co | Investor Owned | 197 | 89 | 1.14 | 11.9 | 454k |
| Warren Rural Elec Coop Corp | Cooperative | 476 | 159 | 3.21 | 12.7 | 62k |
| Nolin Rural Electric Coop Corp | Cooperative | 199 | 51 | 1.33 | 12.8 | 37k |
| Meade County Rural E C C | Cooperative | 446 | 129 | 2.60 | 15.3 | 30k |
| Farmers Rural Electric Coop Corp | Cooperative | 341 | 128 | 1.62 | 13.0 | 25k |
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 14,255 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 →