New Orleans, LA 70172 Frost Dates
New Orleans, LA: when does the frost end?
Around 02/10 is the usual last spring frost, about 166 days away. Fall's first freeze usually shows up around 12/17, roughly 309 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 16 weeks until New Orleans's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
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
At roughly 309 frost-free days, New Orleans places 3,616 of 40,283 ZIP codes in this dataset. Within LA, it ranks 110 of 710.
Learn more
Before leaning on 70172's figures: local microclimates explains what one yard in New Orleans can differ from the 70172 normal, while zone vs. frost date explains why Zone 9b and New Orleans's frost date answer different questions.