Mobile, AL 36617 Frost Dates
When can you plant in Mobile, AL?
The last spring frost here typically falls around 02/21, about 177 days from today. The first fall frost typically arrives around 12/06, about 292 frost-free days later.
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 Mobile, not a forecast for this year.
What to do before the first frost
About 14 weeks of growing season left in Mobile before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/21 isn't a guarantee
02/21 is the middle of 30 years of NOAA records, not a promise. Plant by 01/25 and you're betting against frost in roughly 9 years out of 10. 03/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mobile compares
At roughly 292 frost-free days, Mobile places 4,314 of 40,283 ZIP codes in this dataset. Within AL, it ranks 13 of 809.
Learn more
the frost range covers how to read the range around Mobile's dates instead of trusting one. local microclimates covers what one yard in Mobile can differ from the 36617 normal.