Huntsville, AL 35759 Frost Dates
Frost dates for Huntsville, AL, ZIP 35759
Around 03/30 is the usual last spring frost, about 214 days away. The first fall frost typically arrives around 11/04, about 223 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.
Why 03/30 isn't a guarantee
03/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/09 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 Huntsville compares
Huntsville's growing season runs about 223 days, ranking 11,993 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 604 of 809.
Learn more
local microclimates explains what one yard in Huntsville can differ from the 35759 normal, and zone vs. frost date explains why Zone 8a and Huntsville's frost date answer different questions.