Warren County Power Outage History
2017–2025 · Kentucky
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Dec 11, 2021 | 27 hrs | 43,157 (63%) | Tornado |
| Dec 24, 2022 | 7 hrs | 36,559 (53%) | Winter Storm |
| May 17, 2025 | 43 hrs | 28,005 (41%) | Thunderstorm Wind |
| Mar 3, 2023 | 121 hrs | 27,331 (40%) | High Wind |
| Aug 17, 2023 | 1 hrs | 16,671 (24%) | Unnamed event |
Over the 9 years from 2017 to 2025, Warren County recorded 745 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Warren County started December 11, 2021 (Tornado), lasting 27 hours and leaving up to 43,157 customers without power (63% of the county) at its peak.
July has historically been the worst month for outages in Warren County, with 102 events recorded during that month across the dataset.
Based on this history, Warren County earns a Reliability Grade of C, placing it in the 40th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Kentucky
Counties with the closest reliability grade and national percentile to Warren County.
| County | Grade | National percentile |
|---|---|---|
| Spencer County | C | 41st |
| Pendleton County | D | 40th |
| Nicholas County | D | 39th |
| Gallatin County | C | 42nd |
| Lincoln County | C | 42nd |
FAQ
How often does power go out in Warren County?
Between 2017 and 2025, Warren County recorded 745 outage events, averaging 2.4 hours each.
What is Warren County's reliability grade?
Warren County has a Reliability Grade of C, in the 40th national percentile.
What was the worst power outage in Warren County?
The worst outage on record started December 11, 2021 (Tornado), lasting 27 hours and affecting up to 43,157 customers.