Thibodaux, LA 70301 Frost Dates
Frost dates for Thibodaux, LA, ZIP 70301
Around 02/05 is the usual last spring frost, about 161 days away. The first fall frost typically arrives around 12/14, about 311 frost-free days later.
Thibodaux sits in USDA Zone 9b (25 to 30°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.
What to do before the first frost
Zone 9b around Thibodaux has about 15 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 02/05 isn't a guarantee
02/05 is the middle of 30 years of NOAA records, not a promise. Plant by 01/03 and you're betting against frost in roughly 9 years out of 10. 03/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Thibodaux compares
About 311 days separate Thibodaux's last and first frost, putting it 3,528 of 40,283 ZIP codes nationally. Within LA, it ranks 71 of 710.
Learn more
zone vs. frost date explains why Zone 9b and Thibodaux's frost date answer different questions, and the frost range explains how to read the range around Thibodaux's dates instead of trusting one.