Denham Springs, LA 70817 Frost Dates
When can you plant in Denham Springs, LA?
Typically, the last spring freeze lands around 02/28, roughly 184 days out. The first fall frost typically arrives around 11/26, about 272 frost-free days later.
Denham Springs sits in USDA Zone 9a (20 to 25°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 13 weeks of growing season left in Denham Springs before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/28 isn't a guarantee
02/28 is the middle of 30 years of NOAA records, not a promise. Plant by 01/31 and you're betting against frost in roughly 9 years out of 10. 03/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Denham Springs compares
About 272 days separate Denham Springs's last and first frost, putting it 5,362 of 40,283 ZIP codes nationally. Within LA, it ranks 323 of 710.
Learn more
the frost range covers how to read the range around Denham Springs's dates instead of trusting one. local microclimates covers what one yard in Denham Springs can differ from the 70817 normal.