Walthall County Power Outage History
2014–2025 · Mississippi
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 15, 2021 | 77 hrs | 6,121 (69%) | Winter Storm Uri |
| Jul 22, 2017 | 1 hrs | 5,585 (63%) | Unnamed event |
| Aug 29, 2021 | 19 hrs | 3,737 (42%) | Tropical Storm Ida |
| Dec 23, 2022 | 3 hrs | 3,737 (42%) | Unnamed event |
| Aug 30, 2021 | 167 hrs | 3,676 (41%) | Tropical Storm Ida |
Over the 12 years from 2014 to 2025, Walthall County recorded 1,134 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Walthall County started February 15, 2021 (Winter Storm Uri), lasting 77 hours and leaving up to 6,121 customers without power (69% of the county) at its peak.
June has historically been the worst month for outages in Walthall County, with 147 events recorded during that month across the dataset.
Based on this history, Walthall County earns a Reliability Grade of F, placing it in the 9th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Mississippi
Counties with the closest reliability grade and national percentile to Walthall County.
| County | Grade | National percentile |
|---|---|---|
| Jefferson Davis County | F | 9th |
| Simpson County | F | 9th |
| Tallahatchie County | F | 10th |
| Pike County | F | 8th |
| Smith County | F | 8th |
FAQ
How often does power go out in Walthall County?
Between 2014 and 2025, Walthall County recorded 1,134 outage events, averaging 3.0 hours each.
What is Walthall County's reliability grade?
Walthall County has a Reliability Grade of F, in the 9th national percentile.
What was the worst power outage in Walthall County?
The worst outage on record started February 15, 2021 (Winter Storm Uri), lasting 77 hours and affecting up to 6,121 customers.