Jean Lafitte, LA 70009 Frost Dates
70009, near Jean Lafitte, LA: the frost window
Around 02/10 is the usual last spring frost, about 166 days away. Fall's first freeze usually shows up around 12/12, roughly 306 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 Jean Lafitte, not a forecast for this year.
Stretching the season past the first frost
Jean Lafitte's growing season runs out in roughly 15 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 Jean Lafitte's last frost
02/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/10 and only about 1 year in 10 sees frost after that.
Jean Lafitte against the rest of the dataset
At roughly 306 frost-free days, Jean Lafitte places 3,697 of 40,283 ZIP codes in this dataset. Within LA, it ranks 153 of 710.
Learn more
Two guides worth reading on 70009: local microclimates, on what one yard in Jean Lafitte can differ from the 70009 normal, and zone vs. frost date, on why Zone 9b and Jean Lafitte's frost date answer different questions.