Marshall 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 |
|---|---|---|---|
| May 17, 2025 | 38 hrs | 11,045 (50%) | Hail |
| Mar 6, 2017 | 1 hrs | 9,053 (41%) | High Wind |
| Mar 3, 2023 | 46 hrs | 8,921 (40%) | Strong Wind |
| Aug 14, 2021 | 5 hrs | 6,116 (27%) | Heat |
| Aug 9, 2021 | 6 hrs | 6,112 (27%) | Heat |
Over the 9 years from 2017 to 2025, Marshall County recorded 399 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Marshall County started May 17, 2025 (Hail), lasting 38 hours and leaving up to 11,045 customers without power (50% of the county) at its peak.
June has historically been the worst month for outages in Marshall County, with 53 events recorded during that month across the dataset.
Based on this history, Marshall County earns a Reliability Grade of C, placing it in the 56th 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 Marshall County.
| County | Grade | National percentile |
|---|---|---|
| Crittenden County | C | 56th |
| Casey County | C | 56th |
| Morgan County | C | 57th |
| Graves County | C | 55th |
| Henderson County | C | 57th |
FAQ
How often does power go out in Marshall County?
Between 2017 and 2025, Marshall County recorded 399 outage events, averaging 2.4 hours each.
What is Marshall County's reliability grade?
Marshall County has a Reliability Grade of C, in the 56th national percentile.
What was the worst power outage in Marshall County?
The worst outage on record started May 17, 2025 (Hail), lasting 38 hours and affecting up to 11,045 customers.