Port Sulphur, LA frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 5 a year). Cover tender plants when frost is forecast.
How Port Sulphur compares
- In a typical year, frost nights in Port Sulphur fall between December 28 and February 3. In 1 year in 10 the first frost comes as early as December 5, or the last frost as late as March 2.
- Compared with New Orleans, LA, 66 km away, the last frost here is 2 days later than there.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 2 |
| 50% (median) | February 3 |
| 10% (safe for tender plants) | March 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 5 |
| 50% (median) | December 28 |
| 90% (late) | January 31 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Port Sulphur, LA
Port Sulphur, LA frost dates — last frost Feb 3, first frost Dec 28, zone 9b. whenisthelastfrost.com
In mild climates, summer heat limits many crops as much as frost does. Use this calendar for spring planting and lean on fall and winter for cool-season crops.
When to plant vegetables in Port Sulphur, LA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 11 – Nov 25 | Jan 6 – Jan 20 | — | — |
| Peppers | Nov 25 – Dec 9 | Feb 17 – Mar 3 | — | — |
| Eggplant | Nov 25 – Dec 9 | Feb 17 – Mar 3 | — | — |
| Tomatoes | Dec 9 – Dec 23 | Feb 10 – Feb 24 | — | — |
| Lettuce | Dec 9 – Dec 23 | Jan 13 – Jan 27 | Jan 6 – Feb 10 | Nov 2 – Nov 30 |
| Kale | Dec 9 – Dec 23 | Jan 6 – Jan 20 | Jan 6 – Jan 20 | Oct 19 – Nov 9 |
| Broccoli | Dec 9 – Dec 23 | Jan 20 – Feb 3 | — | Sep 21 – Oct 12 |
| Cabbage | Dec 9 – Dec 23 | Jan 13 – Jan 27 | — | Sep 21 – Oct 12 |
| Cauliflower | Dec 9 – Dec 23 | Jan 20 – Feb 3 | — | Sep 21 – Oct 12 |
| Okra | Dec 23 – Jan 6 | Feb 24 – Mar 10 | Feb 24 – Mar 10 | — |
| Basil | Dec 23 – Jan 6 | Feb 10 – Feb 24 | — | — |
| Peas | — | — | Dec 23 – Jan 13 | Oct 5 – Oct 26 |
| Spinach | — | — | Dec 23 – Jan 13 | Nov 2 – Nov 23 |
| Radishes | — | — | Dec 30 – Feb 10 | Nov 16 – Dec 7 |
| Cucumbers | Jan 6 – Jan 13 | Feb 17 – Feb 24 | Feb 10 – Feb 24 | Oct 12 – Oct 26 |
| Zucchini & Summer Squash | Jan 6 – Jan 13 | — | Feb 10 – Feb 24 | Oct 19 – Nov 2 |
| Winter Squash & Pumpkins | Jan 6 – Jan 13 | — | Feb 10 – Feb 24 | — |
| Melons & Watermelon | Jan 6 – Jan 13 | Feb 17 – Mar 3 | — | — |
| Carrots | — | — | Jan 13 – Feb 10 | Oct 5 – Oct 19 |
| Beets | — | — | Jan 13 – Feb 10 | Oct 19 – Nov 2 |
| Potatoes | — | — | Jan 13 – Feb 3 | — |
| Swiss Chard | — | — | Jan 20 – Feb 17 | Oct 19 – Nov 2 |
| Cilantro | — | — | Jan 20 – Feb 10 | Nov 2 – Nov 23 |
| Green Beans | — | — | Feb 10 – Mar 3 | Oct 12 – Oct 26 |
| Sweet Corn | — | — | Feb 10 – Feb 24 | — |
| Sweet Potatoes | — | Feb 17 – Mar 10 | — | — |
| Garlic | — | — | — | Dec 14 – Jan 18 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Lsu Citrus Rsch Stn, LA weather station, 18 km away (elevation 3 ft (1 m)).
Frost dates near Port Sulphur
- Pointe A La Hache Feb 3 · Dec 28
- Empire Jan 25 · Jan 4
- Buras Jan 25 · Jan 4
- Boothville Jan 23 · Jan 9
- Braithwaite Feb 18 · Dec 6
- Venice Jan 23 · Jan 9
- Grand Isle Feb 8 · Dec 19
- New Orleans (Jefferson Parish) Feb 10 · Dec 12
- Saint Bernard Feb 4 · Dec 15
- Barataria Feb 10 · Dec 12
Frequently asked questions
When is the last frost in Port Sulphur, LA?
The median last spring frost in Port Sulphur, LA is February 3. There is still about a 10% chance of frost after March 2, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Port Sulphur, LA?
The median first fall frost is December 28, with about a 10% chance of frost before December 5.
How long is the growing season in Port Sulphur, LA?
About 328 days between the median last spring frost and first fall frost.
What planting zone is Port Sulphur, LA?
Port Sulphur, LA is in USDA hardiness zone 9b.