Grayson County Power Outage History
2015–2025 · Kentucky
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 26, 2023 | 91 hrs | 7,810 (43%) | Thunderstorm Wind |
| Mar 3, 2023 | 165 hrs | 7,732 (42%) | High Wind |
| Jan 22, 2025 | 2 hrs | 7,331 (40%) | Unnamed event |
| Feb 19, 2021 | 3 hrs | 7,095 (39%) | Winter Storm |
| Jul 30, 2024 | 13 hrs | 4,166 (23%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, Grayson County recorded 550 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Grayson County started June 26, 2023 (Thunderstorm Wind), lasting 91 hours and leaving up to 7,810 customers without power (43% of the county) at its peak.
June has historically been the worst month for outages in Grayson County, with 81 events recorded during that month across the dataset.
Based on this history, Grayson County earns a Reliability Grade of D, placing it in the 29th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Grayson County's outage profile
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Similar counties in Kentucky
Counties with the closest reliability grade and national percentile to Grayson County.
| County | Grade | National percentile |
|---|---|---|
| Wayne County | D | 29th |
| Hancock County | D | 30th |
| Lyon County | D | 30th |
| Logan County | D | 30th |
| Trimble County | D | 31st |
FAQ
How often does power go out in Grayson County?
Between 2015 and 2025, Grayson County recorded 550 outage events, averaging 2.5 hours each.
What is Grayson County's reliability grade?
Grayson County has a Reliability Grade of D, in the 29th national percentile.
What was the worst power outage in Grayson County?
The worst outage on record started June 26, 2023 (Thunderstorm Wind), lasting 91 hours and affecting up to 7,810 customers.