Marshall County Power Outage History
2014–2025 · Tennessee
Better than average — fewer or shorter 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 |
|---|---|---|---|
| Apr 17, 2024 | 1 hrs | 7,712 (42%) | Unnamed event |
| May 8, 2024 | 25 hrs | 6,697 (37%) | Tornado |
| Jun 28, 2018 | 7 hrs | 5,394 (29%) | Thunderstorm Wind |
| Jun 4, 2024 | 1 hrs | 4,498 (25%) | Unnamed event |
| Dec 15, 2025 | 2 hrs | 4,329 (24%) | Unnamed event |
Over the 12 years from 2014 to 2025, Marshall County recorded 322 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Marshall County started April 17, 2024, lasting 1 hours and leaving up to 7,712 customers without power (42% of the county) at its peak.
June has historically been the worst month for outages in Marshall County, with 42 events recorded during that month across the dataset.
Based on this history, Marshall County earns a Reliability Grade of B, placing it in the 77th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Marshall County's outage profile
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Outage-prep kit
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Marshall County.
| County | Grade | National percentile |
|---|---|---|
| Marion County | B | 77th |
| Franklin County | B | 78th |
| Cannon County | B | 78th |
| McMinn County | B | 78th |
| Greene County | B | 76th |
FAQ
How often does power go out in Marshall County?
Between 2014 and 2025, Marshall County recorded 322 outage events, averaging 2.0 hours each.
What is Marshall County's reliability grade?
Marshall County has a Reliability Grade of B, in the 77th national percentile.
What was the worst power outage in Marshall County?
The worst outage on record started April 17, 2024, lasting 1 hours and affecting up to 7,712 customers.