Wisner, LA 71378 Frost Dates
71378, near Wisner, LA: the frost window
Around 03/10 is the usual last spring frost, about 194 days away. Fall's first freeze usually shows up around 11/16, roughly 250 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Wisner in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Wisner's growing season runs out in roughly 11 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 Wisner's last frost
03/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/31 and only about 1 year in 10 sees frost after that.
Wisner against the rest of the dataset
At roughly 250 frost-free days, Wisner places 7,574 of 40,283 ZIP codes in this dataset. Within LA, it ranks 598 of 710.
Learn more
Two guides worth reading on 71378: local microclimates, on what one yard in Wisner can differ from the 71378 normal, and zone vs. frost date, on why Zone 8b and Wisner's frost date answer different questions.