PowerOutageHistory
B

Franklin County Power Outage History

20142025 · Tennessee

Better than average — fewer or shorter outages than most counties. How grades are calculated

Total events
391
Avg duration
2.1 hrs
Longest outage
19 hrs
National percentile
78th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Jul 29, 202412 hrs5,385 (22%)Drought
Jun 22, 201913 hrs5,286 (22%)Thunderstorm Wind
Nov 6, 201818 hrs4,085 (17%)Tornado
Mar 3, 202319 hrs3,498 (14%)Thunderstorm Wind
Jun 18, 20203 hrs3,278 (14%)Unnamed event

Over the 12 years from 2014 to 2025, Franklin County recorded 391 distinct power outage events, averaging 2.1 hours per event.

The single worst outage on record in Franklin County started July 29, 2024 (Drought), lasting 12 hours and leaving up to 5,385 customers without power (22% of the county) at its peak.

April has historically been the worst month for outages in Franklin County, with 48 events recorded during that month across the dataset.

Based on this history, Franklin County earns a Reliability Grade of B, placing it in the 78th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Franklin County's outage profile

See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.

Outage-prep kit

See our outage-prep guides.

Similar counties in Tennessee

Counties with the closest reliability grade and national percentile to Franklin County.

CountyGradeNational percentile
Marshall CountyB77th
Marion CountyB77th
Cannon CountyB78th
McMinn CountyB78th
Greene CountyB76th

FAQ

How often does power go out in Franklin County?

Between 2014 and 2025, Franklin County recorded 391 outage events, averaging 2.1 hours each.

What is Franklin County's reliability grade?

Franklin County has a Reliability Grade of B, in the 78th national percentile.

What was the worst power outage in Franklin County?

The worst outage on record started July 29, 2024 (Drought), lasting 12 hours and affecting up to 5,385 customers.

Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.