Tangipahoa, LA 70465 Frost Dates
70465, near Tangipahoa, 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 Tangipahoa 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
Tangipahoa'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.
The actual range around Tangipahoa's last frost
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.
Tangipahoa against the rest of the dataset
About 257 days separate Tangipahoa's last and first frost, putting it 6,749 of 40,283 ZIP codes nationally. Within LA, it ranks 535 of 710.
Learn more
Two guides worth reading on 70465: the frost range, on how to read the range around Tangipahoa's dates instead of trusting one, and local microclimates, on what one yard in Tangipahoa can differ from the 70465 normal.