Huntsville, AL 35808 Frost Dates
35808, near Huntsville, AL: the frost window
Typically, the last spring freeze lands around 03/24, roughly 208 days out. Fall's first freeze usually shows up around 11/08, roughly 229 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Huntsville in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Huntsville's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Huntsville's last frost
03/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Huntsville against the rest of the dataset
Huntsville's growing season runs about 229 days, ranking 10,536 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 525 of 809.
Learn more
Two guides worth reading on 35808: local microclimates, on what one yard in Huntsville can differ from the 35808 normal, and zone vs. frost date, on why Zone 8a and Huntsville's frost date answer different questions.