Bay Minette, AL 36507 Frost Dates
36507, near Bay Minette, AL: the frost window
Around 02/28 is the usual last spring frost, about 184 days away. Fall's first freeze usually shows up around 11/25, roughly 272 days after the last spring frost.
Zone 9a (20 to 25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Bay Minette, not a forecast for this year.
Stretching the season past the first frost
Bay Minette's growing season runs out in roughly 13 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 02/28 isn't a guarantee
02/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/21 and only about 1 year in 10 sees frost after that.
Bay Minette against the rest of the dataset
About 272 days separate Bay Minette's last and first frost, putting it 5,371 of 40,283 ZIP codes nationally. Within AL, it ranks 28 of 809.
Learn more
Two guides worth reading on 36507: local microclimates, on what one yard in Bay Minette can differ from the 36507 normal, and zone vs. frost date, on why Zone 9a and Bay Minette's frost date answer different questions.