Power outage history
St. Martin Parish Louisiana
18hours
without power for the average customer in a typical year, 2018–2025
44th most of 63 in Louisiana 2.7× the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of St. Martin's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2020 was the worst well-recorded year, at 2.4 days for the average customer. Hatched years have a thin record and are left out of the averages.
St. Martin, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Oct 9, 2020 | Hurricane Delta | 18,207 | 100% | 5.0 d | 2.9 d | 755k |
| May 13, 2024 | Thunderstorms | 14,123 | 78% | 4.8 d | 15 h | 312k |
| Jul 12, 2019 | Hurricane Barry | 9,619 | 53% | 3.9 d | 2.0 d | 237k |
| Aug 27, 2020 | Hurricane Laura | 11,837 | 65% | 2.6 d | 31 h | 200k |
| Apr 27, 2015 | Thunderstorms | 2,616 | 14% | 3.3 d | 3.1 d | 47k |
| Aug 31, 2021 | No storm report | 1,880 | 10% | 6.2 d | 3.9 d | 46k |
| Jan 15, 2024 | No storm report | 6,476 | 36% | 19 h | 14 h | 46k |
| Sep 11, 2024 | Hurricane Francine | 1,596 | 9% | 2.8 d | 2.7 d | 35k |
| Aug 29, 2021 | Hurricane Ida | 1,757 | 10% | 28 h | 14 h | 20k |
| Apr 13, 2019 | No storm report | 3,831 | 21% | 8.5 h | 1.8 h | 15k |
| May 19, 2016 | No storm report | 2,467 | 14% | 20 h | 17 h | 15k |
| Apr 10, 2024 | Thunderstorms | 4,708 | 26% | 7.5 h | 4.5 h | 14k |
| Sep 8, 2023 | Thunderstorms | 4,167 | 23% | 9.2 h | 4.2 h | 14k |
| Apr 30, 2017 | No storm report | 2,456 | 13% | 18 h | 11 h | 11k |
| Jan 11, 2020 | Thunderstorms | 1,657 | 9% | 10 h | 6.2 h | 9.9k |
| Jun 28, 2016 | No storm report | 3,256 | 18% | 4.5 h | 2.2 h | 9.6k |
| Feb 16, 2022 | No storm report | 3,370 | 19% | 2.8 h | 4.0 h | 9.2k |
| Jan 6, 2021 | Tornadoes | 2,739 | 15% | 7.5 h | 6.5 h | 9.1k |
| Feb 15, 2021 | Winter storm | 2,508 | 14% | 8.5 h | 5.8 h | 8.0k |
| Apr 25, 2025 | No storm report | 2,899 | 16% | 4.2 h | 3.0 h | 7.7k |
| Nov 2, 2024 | No storm report | 5,887 | 32% | 2.0 h | 12 min | 7.7k |
| Jun 20, 2023 | No storm report | 1,796 | 10% | 13 h | 10 h | 7.4k |
| Apr 15, 2023 | No storm report | 2,243 | 12% | 4.2 h | 2.8 h | 7.4k |
| Jun 10, 2020 | No storm report | 1,604 | 9% | 5.0 h | 4.8 h | 7.3k |
| May 10, 2016 | No storm report | 7,496 | 41% | 2.0 h | 1.2 h | 7.2k |
| Sep 18, 2015 | No storm report | 1,592 | 9% | 4.5 h | 4.2 h | 7.1k |
| Feb 23, 2016 | No storm report | 662 | 4% | 16 h | – | 6.9k |
| Oct 22, 2020 | No storm report | 1,621 | 9% | 5.8 h | 2.0 h | 6.8k |
| Oct 22, 2017 | No storm report | 1,718 | 9% | 11 h | 14 h | 6.8k |
| Jul 11, 2019 | Hurricane Barry | 1,568 | 9% | 5.5 h | 2.8 h | 6.6k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for St. Martin from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Tropical storm 57%
- No storm on record 25%
- Thunderstorms 16%
Who keeps the lights on
Utilities serving St. Martin
As each utility reports to the Energy Information Administration for its whole Louisiana territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Entergy Louisiana LLC | Investor Owned | 253 | 218 | 1.83 | 11.9 | 962k |
| Cleco Power LLC | Investor Owned | 212 | 146 | 2.26 | 14.3 | 253k |
| Southwest Louisiana E M C | Cooperative | 232 | 172 | 2.67 | 11.6 | 110k |
| City of St Martinville | LA | – | – | – | – | 30k |
| South Louisiana Elec Coop Assn | Cooperative | 176 | 176 | 2.43 | 12.3 | 17k |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
- Assumption 53 h
- Iberville 19 h
- St. Martin (this county) 18 h
- Pointe Coupee 15 h
- St. Landry 13 h
- St. Mary 10 h
- Iberia 9.5 h
- Lafayette 5.1 h
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 18,207 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →