Maury CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 3, 2020 | 52 hrs | 24,561 (44%) | Thunderstorm Wind |
| Dec 7, 2022 | 2 hrs | 13,100 (23%) | Flood |
| Apr 30, 2023 | 6 hrs | 10,677 (19%) | Hail |
| Aug 31, 2023 | 1 hrs | 9,349 (17%) | Heat |
| Sep 3, 2022 | 1 hrs | 8,703 (15%) | Heavy Rain |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Maury County, Tennessee that day.
Over the 12 years from 2014 to 2025, Maury County recorded 527 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Maury County started May 3, 2020 (Thunderstorm Wind), lasting 52 hours and leaving up to 24,561 customers without power (44% of the county) at its peak.
May has historically been the worst month for outages in Maury County, with 81 events recorded during that month across the dataset.
Based on this history, Maury County earns a Reliability Grade of B, placing it in the 68th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Maury County.
| County | Grade | National percentile |
|---|---|---|
| Loudon County | B | 69th |
| Coffee County | B | 69th |
| Jefferson County | B | 70th |
| Sequatchie County | B | 70th |
| Montgomery County | B | 65th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Maury County?
Between 2014 and 2025, Maury County recorded 527 outage events, averaging 2.0 hours each.
What is Maury County's reliability grade?
Maury County has a Reliability Grade of B, in the 68th national percentile.
What was the worst power outage in Maury County?
The worst outage on record started May 3, 2020 (Thunderstorm Wind), lasting 52 hours and affecting up to 24,561 customers.