Montgomery, AL 36117 Frost Dates
Frost dates for Montgomery, AL, ZIP 36117
Typically, the last spring freeze lands around 03/04, roughly 188 days out. The first fall frost typically arrives around 11/18, about 262 frost-free days later.
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.
What to do before the first frost
Zone 8b around Montgomery has about 12 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 Montgomery's last frost
03/04 is the middle of 30 years of NOAA records, not a promise. Plant by 02/09 and you're betting against frost in roughly 9 years out of 10. 03/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Montgomery compares
Montgomery's growing season runs about 262 days, ranking 6,173 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 120 of 809.
Learn more
the frost range explains how to read the range around Montgomery's dates instead of trusting one, and local microclimates explains what one yard in Montgomery can differ from the 36117 normal.