St. Helena Parish Power Outage History
2014–2025 · Louisiana
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 |
|---|---|---|---|
| Aug 30, 2021 | 456 hrs | 8,648 (99%) | Tropical Storm Ida |
| Feb 20, 2019 | 1 hrs | 6,740 (77%) | Unnamed event |
| Oct 9, 2020 | 92 hrs | 6,685 (77%) | Hurricane Delta |
| Feb 15, 2021 | 77 hrs | 6,146 (70%) | Winter Storm Uri |
| Dec 8, 2023 | 3 hrs | 5,272 (60%) | Drought |
Over the 12 years from 2014 to 2025, St. Helena Parish recorded 2,468 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in St. Helena Parish started August 30, 2021 (Tropical Storm Ida), lasting 456 hours and leaving up to 8,648 customers without power (99% of the county) at its peak.
July has historically been the worst month for outages in St. Helena Parish, with 291 events recorded during that month across the dataset.
Based on this history, St. Helena Parish earns a Reliability Grade of F, placing it in the 0th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for St. Helena Parish's outage profile
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Similar counties in Louisiana
Counties with the closest reliability grade and national percentile to St. Helena Parish.
| County | Grade | National percentile |
|---|---|---|
| St. John the Baptist Parish | F | 0th |
| Lafourche Parish | F | 0th |
| Cameron Parish | F | 0th |
| Beauregard Parish | F | 0th |
| Calcasieu Parish | F | 1st |
FAQ
How often does power go out in St. Helena Parish?
Between 2014 and 2025, St. Helena Parish recorded 2,468 outage events, averaging 2.4 hours each.
What is St. Helena Parish's reliability grade?
St. Helena Parish has a Reliability Grade of F, in the 0th national percentile.
What was the worst power outage in St. Helena Parish?
The worst outage on record started August 30, 2021 (Tropical Storm Ida), lasting 456 hours and affecting up to 8,648 customers.