Plaquemine, LA 70765 Frost Dates
70765, near Plaquemine, LA: the frost window
Typically, the last spring freeze lands around 02/28, roughly 184 days out. Fall's first freeze usually shows up around 11/24, roughly 268 days after the last spring frost.
Plaquemine sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Plaquemine's growing season runs out in roughly 13 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 02/28 isn't a guarantee
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.
Plaquemine against the rest of the dataset
Plaquemine's growing season runs about 268 days, ranking 5,753 of 40,283 US ZIP codes measured here, longest to shortest. Within LA, it ranks 379 of 710.
Learn more
Two guides worth reading on 70765: zone vs. frost date, on why Zone 9a and Plaquemine's frost date answer different questions, and the frost range, on how to read the range around Plaquemine's dates instead of trusting one.