Montgomery, AL 36101 Frost Dates
36101, near Montgomery, AL: the frost window
Typically, the last spring freeze lands around 03/04, roughly 188 days out. Fall's first freeze usually shows up around 11/18, roughly 262 days after the last spring frost.
Montgomery sits in USDA Zone 8b (15 to 20°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
Montgomery's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/04 isn't a guarantee
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 6,164 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 111 of 809.
Learn more
Two guides worth reading on 36101: zone vs. frost date, on why Zone 8b and Montgomery's frost date answer different questions, and the frost range, on how to read the range around Montgomery's dates instead of trusting one.