Broussard, LA 70519 Frost Dates
When can you plant in Broussard, LA?
Typically, the last spring freeze lands around 02/19, roughly 175 days out. The first fall frost typically arrives around 12/01, about 289 frost-free days later.
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 Broussard, not a forecast for this year.
What to do before the first frost
About 14 weeks of growing season left in Broussard before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/19 isn't a guarantee
02/19 is the middle of 30 years of NOAA records, not a promise. Plant by 01/17 and you're betting against frost in roughly 9 years out of 10. 03/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Broussard compares
About 289 days separate Broussard's last and first frost, putting it 4,544 of 40,283 ZIP codes nationally. Within LA, it ranks 243 of 710.
Learn more
local microclimates covers what one yard in Broussard can differ from the 70519 normal. zone vs. frost date covers why Zone 9a and Broussard's frost date answer different questions.