Maringouin, LA 70729 Frost Dates
70729, near Maringouin, LA: the frost window
The last spring frost here typically falls around 02/19, about 175 days from today. Fall's first freeze usually shows up around 12/05, roughly 292 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 Maringouin, not a forecast for this year.
Stretching the season past the first frost
Maringouin's growing season runs out in roughly 14 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 Maringouin's last frost
02/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/14 and only about 1 year in 10 sees frost after that.
Maringouin against the rest of the dataset
At roughly 292 frost-free days, Maringouin places 4,380 of 40,283 ZIP codes in this dataset. Within LA, it ranks 216 of 710.
Learn more
Two guides worth reading on 70729: zone vs. frost date, on why Zone 9a and Maringouin's frost date answer different questions, and the frost range, on how to read the range around Maringouin's dates instead of trusting one.