Power outage history
Calloway County Kentucky
5.3hours
without power for the average customer in a typical year, 2018–2025
87th most of 119 in Kentucky 19% 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 Calloway's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2024 was the worst well-recorded year, at 15 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Calloway, 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 |
|---|---|---|---|---|---|---|
| May 26, 2024 | Tornadoes | 8,654 | 34% | 3.4 d | 3.0 d | 286k |
| Mar 3, 2023 | Windstorm | 5,597 | 22% | 2.1 d | 5.2 h | 75k |
| May 4, 2021 | Thunderstorms | 8,627 | 34% | 16 h | 8.5 h | 64k |
| Jul 18, 2023 | Thunderstorms | 4,795 | 19% | 27 h | 26 h | 42k |
| Dec 6, 2021 | Tornadoes | 5,079 | 20% | 16 h | 15 h | 41k |
| Jun 21, 2019 | Thunderstorms | 3,092 | 12% | 37 h | 32 h | 39k |
| Jan 26, 2024 | No storm report | 5,676 | 22% | 6.2 h | 30 min | 35k |
| May 16, 2025 | Thunderstorms | 4,412 | 17% | 19 h | 18 h | 34k |
| Feb 3, 2022 | Ice storm | 1,845 | 7% | 26 h | 22 h | 18k |
| Jun 17, 2022 | Thunderstorms | 3,643 | 14% | 11 h | 10 h | 15k |
| Jul 1, 2017 | Thunderstorms | 2,689 | 11% | 6.0 h | 4.2 h | 14k |
| Mar 1, 2017 | Thunderstorms | 1,628 | 6% | 15 h | 15 h | 14k |
| Aug 20, 2018 | No storm report | 6,116 | 24% | 2.0 h | 2.2 h | 12k |
| May 27, 2017 | Thunderstorms | 1,677 | 7% | 12 h | 7.5 h | 11k |
| May 2, 2025 | Thunderstorms | 2,632 | 10% | 8.5 h | 4.8 h | 11k |
| Sep 28, 2019 | No storm report | 6,130 | 24% | 1.8 h | 1.8 h | 11k |
| Aug 22, 2024 | No storm report | 5,691 | 22% | 2.2 h | 7.0 h | 10k |
| Apr 3, 2025 | No storm report | 3,366 | 13% | 7.8 h | 1.8 h | 10k |
| Jun 28, 2018 | Thunderstorms | 1,533 | 6% | 13 h | 15 h | 10k |
| Sep 29, 2017 | No storm report | 1,774 | 7% | 5.5 h | 5.2 h | 9.7k |
| Jan 22, 2025 | Winter storm | 6,930 | 27% | 1.2 h | 1.0 h | 8.3k |
| Apr 5, 2023 | Tornadoes | 4,511 | 18% | 4.2 h | 1.8 h | 7.6k |
| Apr 25, 2024 | No storm report | 1,969 | 8% | 3.8 h | 5.2 h | 7.4k |
| Feb 22, 2022 | No storm report | 854 | 3% | 8.8 h | – | 6.7k |
| Sep 21, 2022 | No storm report | 5,867 | 23% | 1.0 h | 1.8 h | 5.9k |
| Apr 2, 2024 | No storm report | 3,666 | 14% | 1.2 h | 1.2 h | 4.6k |
| Jul 10, 2024 | Hurricane Beryl | 899 | 4% | 6.0 h | – | 4.5k |
| May 20, 2025 | Thunderstorms | 947 | 4% | 5.8 h | – | 3.8k |
| Apr 29, 2021 | No storm report | 1,366 | 5% | 3.2 h | 3.2 h | 3.8k |
| Apr 25, 2025 | No storm report | 917 | 4% | 4.0 h | – | 3.7k |
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 Calloway from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Tornadoes 34%
- No storm on record 26%
- Thunderstorms 24%
- Windstorm 9.2%
- Ice storm 1.8%
- Winter storm 1.7%
- Heat 1.6%
- Flooding 0.9%
- Tropical storm 0.5%
Who keeps the lights on
Utilities serving Calloway
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 |
|---|---|---|---|---|---|---|
| West Kentucky Rural E C C | Cooperative | 380 | 265 | 2.84 | 14.2 | 32k |
| City of Murray | Municipal | – | – | – | 14.3 | 6.2k |
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
- Trigg 23 h
- Stewart, TN 14 h
- Henry, TN 12 h
- Calloway (this county) 5.3 h
- Marshall 5.3 h
- Graves 4.9 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 25,554 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 →