Baton Rouge, LA 70814 Frost Dates
Frost dates for Baton Rouge, LA, ZIP 70814
The last spring frost here typically falls around 02/25, about 181 days from today. The first fall frost typically arrives around 11/26, about 276 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
02/25 is the middle of 30 years of NOAA records, not a promise. Plant by 01/29 and you're betting against frost in roughly 9 years out of 10. 03/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Baton Rouge compares
Baton Rouge's growing season runs about 276 days, ranking 5,043 of 40,283 US ZIP codes measured here, longest to shortest. Within LA, it ranks 260 of 710.
Learn more
local microclimates explains what one yard in Baton Rouge can differ from the 70814 normal, and zone vs. frost date explains why Zone 9a and Baton Rouge's frost date answer different questions.