Harrison County Power Outage History
2014–2025 · 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 |
|---|---|---|---|
| Mar 3, 2023 | 74 hrs | 4,636 (44%) | High Wind |
| Oct 16, 2025 | 0 hrs | 4,236 (40%) | Unnamed event |
| Sep 27, 2024 | 53 hrs | 3,270 (31%) | Hurricane Helene |
| Nov 12, 2025 | 0 hrs | 3,216 (31%) | Unnamed event |
| May 26, 2024 | 29 hrs | 1,949 (19%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Harrison County recorded 545 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Harrison County started March 3, 2023 (High Wind), lasting 74 hours and leaving up to 4,636 customers without power (44% of the county) at its peak.
June has historically been the worst month for outages in Harrison County, with 70 events recorded during that month across the dataset.
Based on this history, Harrison County earns a Reliability Grade of C, placing it in the 54th 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 Harrison County.
| County | Grade | National percentile |
|---|---|---|
| Henry County | C | 54th |
| Carroll County | C | 55th |
| Mason County | C | 53rd |
| Barren County | C | 53rd |
| Graves County | C | 55th |
FAQ
How often does power go out in Harrison County?
Between 2014 and 2025, Harrison County recorded 545 outage events, averaging 2.4 hours each.
What is Harrison County's reliability grade?
Harrison County has a Reliability Grade of C, in the 54th national percentile.
What was the worst power outage in Harrison County?
The worst outage on record started March 3, 2023 (High Wind), lasting 74 hours and affecting up to 4,636 customers.