Demopolis, AL 36745 Frost Dates
Frost dates for Demopolis, AL, ZIP 36745
Typically, the last spring freeze lands around 03/16, roughly 200 days out. The first fall frost typically arrives around 11/14, about 241 frost-free days later.
Zone 8b (15 to 20°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 Demopolis, not a forecast for this year.
What to do before the first frost
Zone 8b around Demopolis has about 11 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 03/16 isn't a guarantee
03/16 is the middle of 30 years of NOAA records, not a promise. Plant by 02/26 and you're betting against frost in roughly 9 years out of 10. 04/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Demopolis compares
Demopolis's growing season runs about 241 days, ranking 8,544 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 273 of 809.
Learn more
local microclimates explains what one yard in Demopolis can differ from the 36745 normal, and zone vs. frost date explains why Zone 8b and Demopolis's frost date answer different questions.