Mobile, AL 36633 Frost Dates
Frost dates for Mobile, AL, ZIP 36633
Around 03/03 is the usual last spring frost, about 187 days away. The first fall frost typically arrives around 11/25, about 268 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 13 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.
The actual range around Mobile's last frost
03/03 is the middle of 30 years of NOAA records, not a promise. Plant by 02/06 and you're betting against frost in roughly 9 years out of 10. 03/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mobile compares
About 268 days separate Mobile's last and first frost, putting it 5,714 of 40,283 ZIP codes nationally. Within AL, it ranks 61 of 809.
Learn more
the frost range explains how to read the range around Mobile's dates instead of trusting one, and local microclimates explains what one yard in Mobile can differ from the 36633 normal.