Metairie, LA planting zone & frost dates

Metairie is in USDA hardiness zone 9b. The last spring frost usually comes around January 24 and the first fall frost around January 2, for a growing season of about 341 days.

USDA hardiness zone9bavg. extreme winter low 25°F to 30°F
Average last spring frostJanuary 2490% chance of no frost after February 23
Average first fall frostJanuary 210% chance of frost by December 5
Growing season341 daysfrost-free days in an average year

Planting calendar for Metairie

Dates are counted from the average last spring frost (January 24) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.

CropWhen
TomatoesStart seeds indoors: Nov 29 – Dec 13
Transplant outdoors: Jan 31 – Feb 7
PeppersStart seeds indoors: Nov 15 – Nov 29
Transplant outdoors: Feb 7 – Feb 14
EggplantStart seeds indoors: Nov 15 – Nov 29
Transplant outdoors: Feb 7 – Feb 14
BroccoliStart seeds indoors: Nov 15 – Nov 29
Transplant outdoors: Dec 27 – Jan 10
CabbageStart seeds indoors: Nov 15 – Nov 29
Transplant outdoors: Dec 27 – Jan 10
Onions (sets)Plant outdoors: Dec 27 – Jan 10
PeasSow outdoors: Dec 13 – Dec 27
SpinachSow outdoors: Dec 13 – Dec 27
LettuceSow outdoors: Dec 27 – Jan 10
CarrotsSow outdoors: Dec 27 – Jan 10
PotatoesPlant outdoors: Dec 27 – Jan 10
BeansSow outdoors: Jan 31 – Feb 7
Sweet cornSow outdoors: Jan 31 – Feb 7
CucumbersSow outdoors: Jan 31 – Feb 7
Squash & zucchiniSow outdoors: Jan 31 – Feb 7
BasilStart seeds indoors: Dec 13 – Dec 27
Transplant outdoors: Jan 31 – Feb 7

Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Nov 7 (8 weeks before the average first fall frost on Jan 2).

Useful for zone 9b gardens

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Frost risk in detail

90% chance50% chance10% chance
Last 32°F frost in spring is afterDec 28Jan 24Feb 23
First 32°F frost in fall is beforeFeb 1Jan 2Dec 5

How to read it: in spring there is a 10% chance of a frost after February 23, so that is a safe date for tender plants. In fall there is a 10% chance of frost before December 5. A hard freeze (28°F) usually ends around January 15.

Hardiness zone by ZIP code in Metairie

Nearby cities

All cities in Louisiana → · Other zone 9b cities →

Questions

What growing zone is Metairie, LA?

Metairie is in USDA Plant Hardiness Zone 9b (average extreme winter low 25°F to 30°F), according to the USDA 2023 map.

When is the last frost in Metairie?

The average last spring frost (32°F) in Metairie is January 24. There is still a 10% chance of frost until February 23.

When can I plant tomatoes in Metairie?

Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Jan 31 – Feb 7. Start seeds indoors 6–8 weeks before the last frost.

Frost dates: NOAA U.S. Climate Normals 1991–2020, station New Orleans Audubon, LA (USW00012930), 7.8 km (4.8 mi) from the city center, elevation 6 m, based on 26 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.