Baton Rouge, LA 70836 Frost Dates
Frost dates for Baton Rouge, LA, ZIP 70836
Around 02/28 is the usual last spring frost, about 184 days away. The first fall frost typically arrives around 11/26, about 272 frost-free days later.
Baton Rouge 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
Zone 9a around Baton Rouge has about 13 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 02/28 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 Baton Rouge compares
About 272 days separate Baton Rouge's last and first frost, putting it 5,318 of 40,283 ZIP codes nationally. Within LA, it ranks 322 of 710.
Learn more
the frost range explains how to read the range around Baton Rouge's dates instead of trusting one, and local microclimates explains what one yard in Baton Rouge can differ from the 70836 normal.