Bon Air, AL 35044 Frost Dates
35044, near Bon Air, AL: the frost window
Around 03/31 is the usual last spring frost, about 215 days away. Fall's first freeze usually shows up around 11/02, roughly 216 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Bon Air 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
Bon Air's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/31 isn't a guarantee
03/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Bon Air against the rest of the dataset
About 216 days separate Bon Air's last and first frost, putting it 13,922 of 40,283 ZIP codes nationally. Within AL, it ranks 672 of 809.
Learn more
Two guides worth reading on 35044: local microclimates, on what one yard in Bon Air can differ from the 35044 normal, and zone vs. frost date, on why Zone 8a and Bon Air's frost date answer different questions.