Sulphur, LA 70612 Frost Dates
When can you plant in Sulphur, LA?
Around 03/02 is the usual last spring frost, about 186 days away. The first fall frost typically arrives around 11/25, about 267 frost-free days later.
The USDA Plant Hardiness Zone Map puts Sulphur in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 13 weeks of growing season left in Sulphur before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Sulphur's last frost
03/02 is the middle of 30 years of NOAA records, not a promise. Plant by 01/30 and you're betting against frost in roughly 9 years out of 10. 03/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sulphur compares
At roughly 267 frost-free days, Sulphur places 5,834 of 40,283 ZIP codes in this dataset. Within LA, it ranks 428 of 710.
Learn more
the frost range covers how to read the range around Sulphur's dates instead of trusting one. local microclimates covers what one yard in Sulphur can differ from the 70612 normal.