Grosse Tete, LA 70740 Frost Dates
Grosse Tete, LA: when does the frost end?
Around 02/28 is the usual last spring frost, about 184 days away. Fall's first freeze usually shows up around 11/24, roughly 268 days after the last spring frost.
Zone 9a (20 to 25°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 Grosse Tete, not a forecast for this year.
Stretching the season past the first frost
With roughly 13 weeks until Grosse Tete's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
02/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/21 and only about 1 year in 10 sees frost after that.
Grosse Tete against the rest of the dataset
Grosse Tete's growing season runs about 268 days, ranking 5,814 of 40,283 US ZIP codes measured here, longest to shortest. Within LA, it ranks 416 of 710.
Learn more
Before leaning on 70740's figures: local microclimates explains what one yard in Grosse Tete can differ from the 70740 normal, while zone vs. frost date explains why Zone 9a and Grosse Tete's frost date answer different questions.