Alabaster, AL 35114 Frost Dates
Frost dates for Alabaster, AL, ZIP 35114
Typically, the last spring freeze lands around 03/19, roughly 203 days out. The first fall frost typically arrives around 11/08, about 236 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 Alabaster, not a forecast for this year.
What to do before the first frost
Zone 8b around Alabaster 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 03/19 isn't a guarantee
03/19 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. 04/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Alabaster compares
Alabaster's growing season runs about 236 days, ranking 9,316 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 363 of 809.
Learn more
local microclimates explains what one yard in Alabaster can differ from the 35114 normal, and zone vs. frost date explains why Zone 8b and Alabaster's frost date answer different questions.