Madison County Power Outage History
2017–2025 · 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 |
|---|---|---|---|
| Mar 3, 2023 | 33 hrs | 28,099 (45%) | High Wind |
| Dec 24, 2022 | 2 hrs | 25,389 (41%) | Winter Storm Elliott |
| Dec 24, 2022 | 4 hrs | 22,968 (37%) | Winter Storm Elliott |
| May 6, 2021 | 24 hrs | 15,763 (25%) | Unnamed event |
| Mar 30, 2022 | 49 hrs | 14,035 (23%) | Strong Wind |
Over the 9 years from 2017 to 2025, Madison County recorded 885 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Madison County started March 3, 2023 (High Wind), lasting 33 hours and leaving up to 28,099 customers without power (45% of the county) at its peak.
July has historically been the worst month for outages in Madison County, with 106 events recorded during that month across the dataset.
Based on this history, Madison County earns a Reliability Grade of B, placing it in the 65th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Madison 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 Madison County.
| County | Grade | National percentile |
|---|---|---|
| Montgomery County | B | 65th |
| Campbell County | B | 64th |
| Cocke County | B | 63rd |
| Claiborne County | B | 63rd |
| Obion County | B | 62nd |
FAQ
How often does power go out in Madison County?
Between 2017 and 2025, Madison County recorded 885 outage events, averaging 1.9 hours each.
What is Madison County's reliability grade?
Madison County has a Reliability Grade of B, in the 65th national percentile.
What was the worst power outage in Madison County?
The worst outage on record started March 3, 2023 (High Wind), lasting 33 hours and affecting up to 28,099 customers.