Roseland, LA 70456 Frost Dates
70456, near Roseland, LA: the frost window
Around 03/07 is the usual last spring frost, about 191 days away. Fall's first freeze usually shows up around 11/18, roughly 257 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Roseland in Zone 9a (20 to 25°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
Roseland's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
03/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/10 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.
Roseland against the rest of the dataset
About 257 days separate Roseland's last and first frost, putting it 6,730 of 40,283 ZIP codes nationally. Within LA, it ranks 526 of 710.
Learn more
Two guides worth reading on 70456: the frost range, on how to read the range around Roseland's dates instead of trusting one, and local microclimates, on what one yard in Roseland can differ from the 70456 normal.