New Orleans, LA 70156 Frost Dates
70156, near New Orleans, LA: the frost window
Typically, the last spring freeze lands around 02/10, roughly 166 days out. Fall's first freeze usually shows up around 12/17, roughly 309 days after the last spring frost.
New Orleans sits in USDA Zone 9b (25 to 30°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
New Orleans's growing season runs out in roughly 16 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around New Orleans's last frost
02/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/08 and only about 1 year in 10 sees frost after that.
New Orleans against the rest of the dataset
About 309 days separate New Orleans's last and first frost, putting it 3,605 of 40,283 ZIP codes nationally. Within LA, it ranks 99 of 710.
Learn more
Two guides worth reading on 70156: the frost range, on how to read the range around New Orleans's dates instead of trusting one, and local microclimates, on what one yard in New Orleans can differ from the 70156 normal.