Mississippi Power Outage Season
When outages happen most in Mississippi, and what to expect.
June is historically Mississippi's busiest month for recorded power outages, part of a summer season (June–August) that accounts for about 33% of all recorded outages statewide, averaging 3.2 hours per event. 30 of Mississippi's 80 tracked counties currently carry a Reliability Grade of F.
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Mississippi outages by month
Total recorded events and average duration per event, summed across every tracked county in Mississippi.
Peak season insight
Mississippi's outage season runs June–August, accounting for 33% of all recorded outages. June has the highest frequency.
Month-by-month data table
| Month | Events | Avg duration |
|---|---|---|
| January | 4,035 | 3.3 hrs |
| February | 3,395 | 5.2 hrs |
| March | 4,819 | 3.6 hrs |
| April | 5,729 | 4.6 hrs |
| May | 6,057 | 3.4 hrs |
| June | 7,403 | 3.5 hrs |
| July | 6,866 | 2.4 hrs |
| August | 6,084 | 2.6 hrs |
| September | 4,288 | 2.3 hrs |
| October | 4,442 | 2.9 hrs |
| November | 3,988 | 2.6 hrs |
| December | 4,181 | 3.0 hrs |
This month in Mississippi
October has historically recorded 4,442 outage events across Mississippi, below the state's typical monthly average. Outages that start in October have averaged 2.9 hours.
Main causes by season
Named storms behind Mississippi's worst recorded outages, from the NOAA Storm Events Database.
Winter (December–February)
- Winter Storm Uri
- Tornado
- Thunderstorm Wind
- Hail
- Ice Storm
Spring (March–May)
- Thunderstorm Wind
- Hail
- Tornado
- Winter Storm
- High Wind
Summer (June–August)
- Thunderstorm Wind
- Hail
- Tropical Storm Ida
- Heat
- Flash Flood
Fall (September–November)
- Tropical Storm Olga
- Tropical Depression
- Drought
- Hurricane Nate
- Hurricane Zeta
Mississippi's worst outage events on record
The five largest outages in Mississippi by duration and customers affected.
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 28, 2020 | 120 hrs | 97,348 (89%) | Hurricane Zeta |
| Oct 28, 2020 | 120 hrs | 54,222 (72%) | Unnamed event |
| Jun 16, 2023 | 178 hrs | 35,551 (29%) | Thunderstorm Wind |
| Feb 18, 2021 | 123 hrs | 32,217 (26%) | Winter Storm Uri |
| May 4, 2021 | 80 hrs | 32,662 (27%) | Tornado |
Highest-risk counties in Mississippi
Lowest reliability percentile among Mississippi's tracked counties.
| County | Grade | National percentile |
|---|---|---|
| Wilkinson County | F | 0th |
| Claiborne County | F | 0th |
| Jefferson County | F | 1st |
| Amite County | F | 2nd |
| Franklin County | F | 2nd |
Live weather alerts for Mississippi
There are no active National Weather Service alerts for Mississippi right now.
These live alerts come from the National Weather Service. They are public-safety information, not an outage prediction.
Mississippi power outage FAQ
When do power outages happen most in Mississippi?
June is historically the busiest single month for recorded outages in Mississippi, and Summer (June–August) accounts for about 33% of all recorded outages across the state.
How long do power outages in Mississippi typically last?
Across Mississippi's tracked counties, the average recorded outage lasts about 3.2 hours, though individual events -- especially named storms -- can run much longer.
Which counties in Mississippi have the highest outage risk?
Wilkinson County, Claiborne County, Jefferson County, Amite County, Franklin County currently rank lowest for reliability in Mississippi. See each county's page for its full history.
Does this page predict a power outage in Mississippi?
No. It describes patterns in recorded county-level outage history, not a guaranteed future event. Check the live National Weather Service alerts below for current conditions.
Prepare for Mississippi's outage season
Sized for Mississippi's recorded outage frequency and duration.
