Mobile, AL 36604 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.
Mobile sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
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
Mobile's growing season runs about 292 days, ranking 4,308 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 7 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.