Mobile, AL 36693 Frost Dates
When can you plant in Mobile, AL?
Typically, the last spring freeze lands around 02/21, roughly 177 days out. 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.
The actual range around Mobile's last frost
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
About 292 days separate Mobile's last and first frost, putting it 4,315 of 40,283 ZIP codes nationally. Within AL, it ranks 14 of 809.
Learn more
zone vs. frost date covers why Zone 9a and Mobile's frost date answer different questions. the frost range covers how to read the range around Mobile's dates instead of trusting one.