Henry County Power Outage History
2017–2025 · Alabama
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 10, 2018 | 79 hrs | 7,533 (65%) | Hurricane Michael |
| Aug 21, 2022 | 0 hrs | 5,935 (51%) | Unnamed event |
| Jan 4, 2020 | 1 hrs | 5,704 (49%) | Unnamed event |
| Mar 4, 2019 | 1 hrs | 5,337 (46%) | Unnamed event |
| Jul 22, 2018 | 7 hrs | 5,140 (44%) | Unnamed event |
Over the 9 years from 2017 to 2025, Henry County recorded 576 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Henry County started October 10, 2018 (Hurricane Michael), lasting 79 hours and leaving up to 7,533 customers without power (65% of the county) at its peak.
August has historically been the worst month for outages in Henry County, with 74 events recorded during that month across the dataset.
Based on this history, Henry County earns a Reliability Grade of C, placing it in the 44th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Henry County's outage profile
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Similar counties in Alabama
Counties with the closest reliability grade and national percentile to Henry County.
| County | Grade | National percentile |
|---|---|---|
| St. Clair County | C | 44th |
| Shelby County | C | 44th |
| Hale County | C | 46th |
| Blount County | C | 41st |
| Cullman County | C | 49th |
FAQ
How often does power go out in Henry County?
Between 2017 and 2025, Henry County recorded 576 outage events, averaging 2.5 hours each.
What is Henry County's reliability grade?
Henry County has a Reliability Grade of C, in the 44th national percentile.
What was the worst power outage in Henry County?
The worst outage on record started October 10, 2018 (Hurricane Michael), lasting 79 hours and affecting up to 7,533 customers.