Louisiana Power Outage Season
When outages happen most in Louisiana, and what to expect.
July is historically Louisiana'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 4.1 hours per event. 50 of Louisiana's 64 tracked counties currently carry a Reliability Grade of F.
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Louisiana outages by month
Total recorded events and average duration per event, summed across every tracked county in Louisiana.
Peak season insight
Louisiana's outage season runs June–August, accounting for 33% of all recorded outages. July has the highest frequency.
Month-by-month data table
| Month | Events | Avg duration |
|---|---|---|
| January | 5,626 | 4.7 hrs |
| February | 4,392 | 3.9 hrs |
| March | 5,968 | 6.6 hrs |
| April | 8,140 | 5.0 hrs |
| May | 8,538 | 4.4 hrs |
| June | 9,227 | 3.6 hrs |
| July | 9,309 | 2.9 hrs |
| August | 9,263 | 4.3 hrs |
| September | 6,518 | 3.5 hrs |
| October | 6,266 | 3.9 hrs |
| November | 5,680 | 2.3 hrs |
| December | 5,363 | 2.6 hrs |
This month in Louisiana
October has historically recorded 6,266 outage events across Louisiana, below the state's typical monthly average. Outages that start in October have averaged 3.9 hours.
Main causes by season
Named storms behind Louisiana's worst recorded outages, from the NOAA Storm Events Database.
Winter (December–February)
- Winter Storm Uri
- Thunderstorm Wind
- Drought
- Heavy Snow
- Flash Flood
Spring (March–May)
- Thunderstorm Wind
- Tornado
- Hail
- Flash Flood
- Funnel Cloud
Summer (June–August)
- Tropical Storm Ida
- Hurricane (Typhoon)
- Heat
- Hurricane Laura
- Thunderstorm Wind
Fall (September–November)
- Hurricane Delta
- Hurricane Zeta
- Hurricane Laura
- Heavy Rain
- Drought
Louisiana's worst outage events on record
The five largest outages in Louisiana by duration and customers affected.
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 26, 2020 | 845 hrs | 103,022 (69%) | Unnamed event |
| Aug 30, 2021 | 405 hrs | 153,064 (70%) | Tropical Storm Ida |
| Sep 7, 2021 | 1036 hrs | 43,658 (84%) | Unnamed event |
| Aug 30, 2021 | 195 hrs | 204,888 (89%) | Tropical Storm Ida |
| Aug 29, 2021 | 577 hrs | 68,621 (94%) | Tropical Storm Ida |
Highest-risk counties in Louisiana
Lowest reliability percentile among Louisiana's tracked counties.
| County | Grade | National percentile |
|---|---|---|
| Cameron Parish | F | 0th |
| Lafourche Parish | F | 0th |
| St. Helena Parish | F | 0th |
| St. John the Baptist Parish | F | 0th |
| Beauregard Parish | F | 0th |
Live weather alerts for Louisiana
There are no active National Weather Service alerts for Louisiana right now.
These live alerts come from the National Weather Service. They are public-safety information, not an outage prediction.
Louisiana power outage FAQ
When do power outages happen most in Louisiana?
July is historically the busiest single month for recorded outages in Louisiana, and Summer (June–August) accounts for about 33% of all recorded outages across the state.
How long do power outages in Louisiana typically last?
Across Louisiana's tracked counties, the average recorded outage lasts about 4.1 hours, though individual events -- especially named storms -- can run much longer.
Which counties in Louisiana have the highest outage risk?
Cameron Parish, Lafourche Parish, St. Helena Parish, St. John the Baptist Parish, Beauregard Parish currently rank lowest for reliability in Louisiana. See each county's page for its full history.
Does this page predict a power outage in Louisiana?
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 Louisiana's outage season
Sized for Louisiana's recorded outage frequency and duration. See the full Louisiana storm prep checklist.
