Montgomery, AL 36103 Frost Dates
Montgomery, AL: when does the frost end?
Around 03/04 is the usual last spring frost, about 188 days away. Fall's first freeze usually shows up around 11/18, roughly 262 days after the last spring frost.
Zone 8b (15 to 20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Montgomery, not a forecast for this year.
Stretching the season past the first frost
With roughly 12 weeks until Montgomery's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Montgomery's last frost
03/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/23 and only about 1 year in 10 sees frost after that.
Montgomery against the rest of the dataset
Montgomery's growing season runs about 262 days, ranking 6,165 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 112 of 809.
Learn more
Before leaning on 36103's figures: the frost range explains how to read the range around Montgomery's dates instead of trusting one, while local microclimates explains what one yard in Montgomery can differ from the 36103 normal.