Mobile, AL 36602 Frost Dates
Frost dates for Mobile, AL, ZIP 36602
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
Zone 9a around Mobile has about 14 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
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 4,306 of 40,283 ZIP codes nationally. Within AL, it ranks 5 of 809.
Learn more
zone vs. frost date explains why Zone 9a and Mobile's frost date answer different questions, and the frost range explains how to read the range around Mobile's dates instead of trusting one.