Jefferson Davis 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 |
|---|---|---|---|
| Oct 26, 2019 | 57 hrs | 5,670 (74%) | Tropical Storm Olga |
| Dec 8, 2017 | 59 hrs | 5,455 (71%) | Heavy Snow |
| Feb 15, 2021 | 73 hrs | 4,408 (57%) | Winter Storm Uri |
| Oct 26, 2019 | 3 hrs | 3,629 (47%) | Tropical Storm Olga |
| May 26, 2025 | 17 hrs | 3,229 (42%) | Unnamed event |
Over the 12 years from 2014 to 2025, Jefferson Davis County recorded 1,237 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Jefferson Davis County started October 26, 2019 (Tropical Storm Olga), lasting 57 hours and leaving up to 5,670 customers without power (74% of the county) at its peak.
July has historically been the worst month for outages in Jefferson Davis County, with 157 events recorded during that month across the dataset.
Based on this history, Jefferson Davis 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 Jefferson Davis County.
| County | Grade | National percentile |
|---|---|---|
| Walthall 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 Jefferson Davis County?
Between 2014 and 2025, Jefferson Davis County recorded 1,237 outage events, averaging 3.0 hours each.
What is Jefferson Davis County's reliability grade?
Jefferson Davis County has a Reliability Grade of F, in the 9th national percentile.
What was the worst power outage in Jefferson Davis County?
The worst outage on record started October 26, 2019 (Tropical Storm Olga), lasting 57 hours and affecting up to 5,670 customers.