Huntsville, AL 35806 Frost Dates
Huntsville, AL: when does the frost end?
Around 03/24 is the usual last spring frost, about 208 days away. 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
With roughly 10 weeks until Huntsville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
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
About 229 days separate Huntsville's last and first frost, putting it 10,535 of 40,283 ZIP codes nationally. Within AL, it ranks 524 of 809.
Learn more
Before leaning on 35806's figures: zone vs. frost date explains why Zone 8a and Huntsville's frost date answer different questions, while the frost range explains how to read the range around Huntsville's dates instead of trusting one.