Mobile, AL 36601 Frost Dates
Mobile, AL: when does the frost end?
Typically, the last spring freeze lands around 02/21, roughly 177 days out. Fall's first freeze usually shows up around 12/06, roughly 292 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 14 weeks until Mobile's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Mobile's last frost
02/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/15 and only about 1 year in 10 sees frost after that.
Mobile against the rest of the dataset
About 292 days separate Mobile's last and first frost, putting it 4,305 of 40,283 ZIP codes nationally. Within AL, it ranks 4 of 809.
Learn more
Before leaning on 36601's figures: the frost range explains how to read the range around Mobile's dates instead of trusting one, while local microclimates explains what one yard in Mobile can differ from the 36601 normal.