Huntsville, AL 35801 Frost Dates
Frost dates for Huntsville, AL, ZIP 35801
Around 03/24 is the usual last spring frost, about 208 days away. The first fall frost typically arrives around 11/08, about 229 frost-free days later.
Huntsville sits in USDA Zone 8a (10 to 15°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 8a around Huntsville 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
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/04 and you're betting against frost in roughly 9 years out of 10. 04/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Huntsville compares
At roughly 229 frost-free days, Huntsville places 10,532 of 40,283 ZIP codes in this dataset. Within AL, it ranks 521 of 809.
Learn more
the frost range explains how to read the range around Huntsville's dates instead of trusting one, and local microclimates explains what one yard in Huntsville can differ from the 35801 normal.