Knox County Power Outage History
2015–2025 · 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 |
|---|---|---|---|
| Apr 13, 2020 | 73 hrs | 5,744 (34%) | Strong Wind |
| May 17, 2025 | 61 hrs | 4,227 (25%) | Thunderstorm Wind |
| Feb 16, 2025 | 33 hrs | 4,120 (25%) | Unnamed event |
| Feb 15, 2021 | 37 hrs | 4,005 (24%) | Ice Storm |
| May 26, 2024 | 58 hrs | 3,263 (20%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, Knox County recorded 524 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Knox County started April 13, 2020 (Strong Wind), lasting 73 hours and leaving up to 5,744 customers without power (34% of the county) at its peak.
July has historically been the worst month for outages in Knox County, with 94 events recorded during that month across the dataset.
Based on this history, Knox County earns a Reliability Grade of C, placing it in the 48th 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 Knox County.
| County | Grade | National percentile |
|---|---|---|
| Jefferson County | C | 48th |
| Caldwell County | C | 48th |
| Cumberland County | C | 47th |
| Grant County | C | 48th |
| Christian County | C | 47th |
FAQ
How often does power go out in Knox County?
Between 2015 and 2025, Knox County recorded 524 outage events, averaging 2.6 hours each.
What is Knox County's reliability grade?
Knox County has a Reliability Grade of C, in the 48th national percentile.
What was the worst power outage in Knox County?
The worst outage on record started April 13, 2020 (Strong Wind), lasting 73 hours and affecting up to 5,744 customers.