Coffee 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 |
|---|---|---|---|
| May 9, 2024 | 26 hrs | 11,612 (35%) | Hail |
| Mar 29, 2020 | 6 hrs | 8,346 (25%) | Thunderstorm Wind |
| Nov 20, 2025 | 1 hrs | 7,290 (22%) | Unnamed event |
| Oct 12, 2022 | 23 hrs | 7,002 (21%) | Thunderstorm Wind |
| Feb 16, 2015 | 22 hrs | 6,594 (20%) | Winter Storm |
Over the 12 years from 2014 to 2025, Coffee County recorded 312 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Coffee County started May 9, 2024 (Hail), lasting 26 hours and leaving up to 11,612 customers without power (35% of the county) at its peak.
June has historically been the worst month for outages in Coffee County, with 38 events recorded during that month across the dataset.
Based on this history, Coffee County earns a Reliability Grade of B, placing it in the 69th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Coffee 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 Coffee County.
| County | Grade | National percentile |
|---|---|---|
| Jefferson County | B | 70th |
| Loudon County | B | 69th |
| Sequatchie County | B | 70th |
| Maury County | B | 68th |
| Haywood County | B | 72nd |
FAQ
How often does power go out in Coffee County?
Between 2014 and 2025, Coffee County recorded 312 outage events, averaging 2.3 hours each.
What is Coffee County's reliability grade?
Coffee County has a Reliability Grade of B, in the 69th national percentile.
What was the worst power outage in Coffee County?
The worst outage on record started May 9, 2024 (Hail), lasting 26 hours and affecting up to 11,612 customers.