Carbon Hill, AL 35549 Frost Dates
Frost dates for Carbon Hill, AL, ZIP 35549
The last spring frost here typically falls around 03/30, about 214 days from today. The first fall frost typically arrives around 11/04, about 220 frost-free days later.
The USDA Plant Hardiness Zone Map puts Carbon Hill in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 8a around Carbon Hill 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.
How much risk comes with planting early here
03/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/10 and you're betting against frost in roughly 9 years out of 10. 04/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Carbon Hill compares
At roughly 220 frost-free days, Carbon Hill places 12,834 of 40,283 ZIP codes in this dataset. Within AL, it ranks 640 of 809.
Learn more
local microclimates explains what one yard in Carbon Hill can differ from the 35549 normal, and zone vs. frost date explains why Zone 8a and Carbon Hill's frost date answer different questions.