Union County Power Outage History
2017–2025 · Mississippi
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 |
|---|---|---|---|
| Nov 30, 2022 | 3 hrs | 2,494 (24%) | Hail |
| Apr 10, 2024 | 5 hrs | 2,053 (20%) | Strong Wind |
| Jun 4, 2018 | 8 hrs | 1,914 (19%) | Unnamed event |
| Sep 12, 2024 | 2 hrs | 1,573 (15%) | Unnamed event |
| Aug 10, 2020 | 0 hrs | 1,454 (14%) | Unnamed event |
Over the 9 years from 2017 to 2025, Union County recorded 323 distinct power outage events, averaging 4.0 hours per event.
The single worst outage on record in Union County started November 30, 2022 (Hail), lasting 3 hours and leaving up to 2,494 customers without power (24% of the county) at its peak.
June has historically been the worst month for outages in Union County, with 50 events recorded during that month across the dataset.
Based on this history, Union County earns a Reliability Grade of B, placing it in the 79th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Union County's outage profile
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Outage-prep kit
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Similar counties in Mississippi
Counties with the closest reliability grade and national percentile to Union County.
| County | Grade | National percentile |
|---|---|---|
| Webster County | B | 79th |
| Clay County | B | 75th |
| Lamar County | B | 74th |
| Forrest County | B | 73rd |
| DeSoto County | B | 72nd |
FAQ
How often does power go out in Union County?
Between 2017 and 2025, Union County recorded 323 outage events, averaging 4.0 hours each.
What is Union County's reliability grade?
Union County has a Reliability Grade of B, in the 79th national percentile.
What was the worst power outage in Union County?
The worst outage on record started November 30, 2022 (Hail), lasting 3 hours and affecting up to 2,494 customers.