Andalusia, AL 36420 Frost Dates
Frost dates for Andalusia, AL, ZIP 36420
The last spring frost here typically falls around 03/25, about 209 days from today. The first fall frost typically arrives around 11/09, about 230 frost-free days later.
Andalusia sits in USDA Zone 8b (15 to 20°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 8b around Andalusia has about 10 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 03/25 isn't a guarantee
03/25 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 04/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Andalusia compares
At roughly 230 frost-free days, Andalusia places 10,365 of 40,283 ZIP codes in this dataset. Within AL, it ranks 497 of 809.
Learn more
local microclimates explains what one yard in Andalusia can differ from the 36420 normal, and zone vs. frost date explains why Zone 8b and Andalusia's frost date answer different questions.