Thibodaux, LA 70310 Frost Dates
When can you plant in Thibodaux, LA?
Typically, the last spring freeze lands around 02/05, roughly 161 days out. 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
About 15 weeks of growing season left in Thibodaux before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
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
Thibodaux's growing season runs about 311 days, ranking 3,529 of 40,283 US ZIP codes measured here, longest to shortest. Within LA, it ranks 72 of 710.
Learn more
zone vs. frost date covers why Zone 9b and Thibodaux's frost date answer different questions. the frost range covers how to read the range around Thibodaux's dates instead of trusting one.