Baton Rouge, LA 70810 Frost Dates
Frost dates for Baton Rouge, LA, ZIP 70810
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.
Zone 9a (20 to 25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Baton Rouge, not a forecast for this year.
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.
How much risk comes with planting early here
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
At roughly 272 frost-free days, Baton Rouge places 5,315 of 40,283 ZIP codes in this dataset. Within LA, it ranks 319 of 710.
Learn more
zone vs. frost date explains why Zone 9a and Baton Rouge's frost date answer different questions, and the frost range explains how to read the range around Baton Rouge's dates instead of trusting one.