Winston County Power Outage History
2019–2025 · Mississippi
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 |
|---|---|---|---|
| Feb 18, 2021 | 14 hrs | 10,567 (75%) | Winter Storm Uri |
| Feb 18, 2021 | 94 hrs | 9,110 (64%) | Winter Storm Uri |
| Oct 7, 2020 | 4 hrs | 5,775 (41%) | Unnamed event |
| Aug 30, 2021 | 3 hrs | 3,659 (26%) | Tropical Storm |
| Jun 18, 2023 | 10 hrs | 3,604 (25%) | Hail |
Over the 7 years from 2019 to 2025, Winston County recorded 245 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Winston County started February 18, 2021 (Winter Storm Uri), lasting 14 hours and leaving up to 10,567 customers without power (75% of the county) at its peak.
June has historically been the worst month for outages in Winston County, with 30 events recorded during that month across the dataset.
Based on this history, Winston County earns a Reliability Grade of C, placing it in the 49th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Winston County's outage profile
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Similar counties in Mississippi
Counties with the closest reliability grade and national percentile to Winston County.
| County | Grade | National percentile |
|---|---|---|
| Coahoma County | C | 49th |
| Benton County | C | 51st |
| Tippah County | C | 46th |
| Carroll County | C | 45th |
| Lauderdale County | C | 45th |
FAQ
How often does power go out in Winston County?
Between 2019 and 2025, Winston County recorded 245 outage events, averaging 2.5 hours each.
What is Winston County's reliability grade?
Winston County has a Reliability Grade of C, in the 49th national percentile.
What was the worst power outage in Winston County?
The worst outage on record started February 18, 2021 (Winter Storm Uri), lasting 14 hours and affecting up to 10,567 customers.