Adams 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 18, 2021 | 123 hrs | 11,766 (68%) | Winter Storm Uri |
| Feb 17, 2021 | 20 hrs | 11,452 (66%) | Winter Storm Uri |
| Jul 29, 2015 | 2 hrs | 11,114 (64%) | Unnamed event |
| Oct 10, 2020 | 162 hrs | 10,574 (61%) | Hurricane Delta |
| Dec 28, 2024 | 73 hrs | 7,769 (45%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Adams County recorded 1,158 distinct power outage events, averaging 3.9 hours per event.
The single worst outage on record in Adams County started February 18, 2021 (Winter Storm Uri), lasting 123 hours and leaving up to 11,766 customers without power (68% of the county) at its peak.
July has historically been the worst month for outages in Adams County, with 139 events recorded during that month across the dataset.
Based on this history, Adams County earns a Reliability Grade of F, placing it in the 5th 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 Adams County.
| County | Grade | National percentile |
|---|---|---|
| Attala County | F | 5th |
| Warren County | F | 4th |
| Copiah County | F | 4th |
| Holmes County | F | 7th |
| Smith County | F | 8th |
FAQ
How often does power go out in Adams County?
Between 2014 and 2025, Adams County recorded 1,158 outage events, averaging 3.9 hours each.
What is Adams County's reliability grade?
Adams County has a Reliability Grade of F, in the 5th national percentile.
What was the worst power outage in Adams County?
The worst outage on record started February 18, 2021 (Winter Storm Uri), lasting 123 hours and affecting up to 11,766 customers.