Mobile, AL 36685 Frost Dates
Mobile, AL: when does the frost end?
Typically, the last spring freeze lands around 03/03, roughly 187 days out. Fall's first freeze usually shows up around 11/25, roughly 268 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Mobile in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 13 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
03/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/21 and only about 1 year in 10 sees frost after that.
Mobile against the rest of the dataset
About 268 days separate Mobile's last and first frost, putting it 5,723 of 40,283 ZIP codes nationally. Within AL, it ranks 70 of 809.
Learn more
Before leaning on 36685's figures: zone vs. frost date explains why Zone 9a and Mobile's frost date answer different questions, while the frost range explains how to read the range around Mobile's dates instead of trusting one.