Marengo County Power Outage History
2017–2025 · Alabama
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 |
|---|---|---|---|
| Oct 29, 2020 | 107 hrs | 3,045 (20%) | Tropical Storm |
| Oct 29, 2020 | 1 hrs | 2,521 (16%) | Tropical Storm |
| Oct 29, 2020 | 1 hrs | 2,521 (16%) | Tropical Storm |
| Oct 29, 2020 | 1 hrs | 2,482 (16%) | Tropical Storm |
| Oct 29, 2020 | 1 hrs | 2,479 (16%) | Tropical Storm |
Over the 9 years from 2017 to 2025, Marengo County recorded 532 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Marengo County started October 29, 2020 (Tropical Storm), lasting 107 hours and leaving up to 3,045 customers without power (20% of the county) at its peak.
June has historically been the worst month for outages in Marengo County, with 81 events recorded during that month across the dataset.
Based on this history, Marengo County earns a Reliability Grade of B, placing it in the 61st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Marengo County's outage profile
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Similar counties in Alabama
Counties with the closest reliability grade and national percentile to Marengo County.
| County | Grade | National percentile |
|---|---|---|
| Greene County | B | 61st |
| Barbour County | B | 60th |
| Tuscaloosa County | B | 64th |
| Escambia County | C | 58th |
| Chambers County | B | 65th |
FAQ
How often does power go out in Marengo County?
Between 2017 and 2025, Marengo County recorded 532 outage events, averaging 2.7 hours each.
What is Marengo County's reliability grade?
Marengo County has a Reliability Grade of B, in the 61st national percentile.
What was the worst power outage in Marengo County?
The worst outage on record started October 29, 2020 (Tropical Storm), lasting 107 hours and affecting up to 3,045 customers.