New Orleans, LA 70146 Frost Dates
Frost dates for New Orleans, LA, ZIP 70146
The last spring frost here typically falls around 02/10, about 166 days from today. The first fall frost typically arrives around 12/17, about 309 frost-free days later.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for New Orleans, not a forecast for this year.
What to do before the first frost
Zone 9b around New Orleans has about 16 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around New Orleans's last frost
02/10 is the middle of 30 years of NOAA records, not a promise. Plant by 01/12 and you're betting against frost in roughly 9 years out of 10. 03/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Orleans compares
New Orleans's growing season runs about 309 days, ranking 3,599 of 40,283 US ZIP codes measured here, longest to shortest. Within LA, it ranks 93 of 710.
Learn more
the frost range explains how to read the range around New Orleans's dates instead of trusting one, and local microclimates explains what one yard in New Orleans can differ from the 70146 normal.