New Orleans, LA Frost Dates & Growing Season

The two dates every New Orleans garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Feb 1
~50% chance of frost after
First fall frost
Dec 31
~50% chance of frost before
Growing season
333 days
frost-free stretch
USDA zone
9b
2023 hardiness map
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Jan 2 Feb 1 Mar 6
First fall frost Jan 29 Dec 31 Dec 1
Hard freeze (28°F), median last Jan 23 · first Jan 8

Computed from NOAA 1991–2020 climate normals at the Terrytown 3S station (6 km from central New Orleans). "Safe" means frost past that date happens only about one year in ten. Your exact garden can still run days either way with elevation and terrain — check your own ZIP with the frost date lookup.

Planting windows for New Orleans

Computed from New Orleans's own frost dates. Click any crop for the full zone-9 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Dec 7 – Dec 21 Feb 8 – Feb 15
🫑 Peppers Nov 23 – Dec 7 Feb 15 – Feb 22
🥬 Lettuce Dec 21 – Jan 4 Jan 4 – Jan 18 Jan 4 – Feb 1
🫛 Peas Dec 21 – Jan 4
🥕 Carrots Jan 11 – Feb 1
🥦 Broccoli Dec 14 – Dec 28 Jan 11 – Jan 25
🥬 Kale Dec 21 – Jan 4 Jan 4 – Jan 18 Jan 4 – Jan 18
🥒 Cucumbers Jan 4 – Jan 11 Feb 8 – Feb 15 Feb 8 – Feb 15
🥒 Zucchini Jan 4 – Jan 11 Feb 8 – Feb 15 Feb 8 – Feb 15
🫘 Green Beans (Bush) Feb 8 – Feb 15
🌽 Sweet Corn Feb 8 – Feb 15
🌿 Basil Dec 21 – Jan 4 Feb 8 – Feb 15 Feb 15 – Feb 22
🧄 Garlic Fall: Nov 19 – Dec 17

Want this for all 50 crops, or as a printable seed-shelf schedule? Use the planting calendar and the seed starting scheduler — both can use New Orleans's dates automatically after a lookup.

Reading the season in New Orleans

With roughly 333 frost-free days, New Orleans gardens fit long-season crops — melons, winter squash, sweet potatoes — with room left for spring and fall rounds of greens and roots. The first frost around Dec 31 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in New Orleans, LA?

The average last spring frost in New Orleans is around Feb 1, based on 1991–2020 climate normals. That's a median — about half of years see a later frost, so tender crops are safest going out a week or two after this date.

When is the first frost in New Orleans, LA?

The average first fall frost in New Orleans arrives around Dec 31. Crops still in the garden need to mature before then, and frost-tender plants need harvesting or protection as the date approaches.

How long is the growing season in New Orleans?

About 333 frost-free days on average, from Feb 1 to Dec 31. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is New Orleans in?

USDA zone 9b on the 2023 Plant Hardiness Zone Map. Note that zones describe winter cold, not frost timing — these frost dates are the numbers to plan plantings around.