Montgomery CountyPower Outage History
2014–2025 · Mississippi
Bottom 20% least reliable nationally — frequent and/or long outages.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Mar 25, 2023 | 89 hrs | 3,558 (64%) | Tornado |
| May 8, 2023 | 1 hrs | 3,174 (57%) | Unnamed event |
| Apr 3, 2023 | 2 hrs | 3,162 (56%) | Unnamed event |
| Mar 28, 2023 | 8 hrs | 3,069 (55%) | Tornado |
| May 25, 2016 | 1 hrs | 2,572 (46%) | Unnamed event |
Over the 12 years from 2014 to 2025, Montgomery County recorded 640 distinct power outage events, averaging 3.7 hours per event.
The single worst outage on record in Montgomery County started March 25, 2023 (Tornado), lasting 89 hours and leaving up to 3,558 customers without power (64% of the county) at its peak.
July has historically been the worst month for outages in Montgomery County, with 88 events recorded during that month across the dataset.
Based on this history, Montgomery County earns a Reliability Grade of F, placing it in the 13th 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 Montgomery County.
| County | Grade | National percentile |
|---|---|---|
| Tunica County | F | 12th |
| Newton County | F | 13th |
| Covington County | F | 12th |
| Sharkey County | F | 13th |
| Hinds County | F | 11th |
Most reliable counties in Mississippi
The top 3 counties in Mississippi by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Chickasaw County | A | 99th |
| Alcorn County | A | 98th |
| Monroe County | A | 98th |
Least reliable counties in Mississippi
The bottom 3 counties in Mississippi by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Wilkinson County | F | 0th |
| Claiborne County | F | 0th |
| Jefferson County | F | 1st |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Montgomery County?
Between 2014 and 2025, Montgomery County recorded 640 outage events, averaging 3.7 hours each.
What is Montgomery County's reliability grade?
Montgomery County has a Reliability Grade of F, in the 13th national percentile.
What was the worst power outage in Montgomery County?
The worst outage on record started March 25, 2023 (Tornado), lasting 89 hours and affecting up to 3,558 customers.