Huntsville, AL 35805 Frost Dates
Frost dates for Huntsville, AL, ZIP 35805
The last spring frost here typically falls around 03/24, about 208 days from today. 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.
The actual range around Huntsville's last frost
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
About 229 days separate Huntsville's last and first frost, putting it 10,534 of 40,283 ZIP codes nationally. Within AL, it ranks 523 of 809.
Learn more
local microclimates explains what one yard in Huntsville can differ from the 35805 normal, and zone vs. frost date explains why Zone 8a and Huntsville's frost date answer different questions.