Cullman, AL 35055 Frost Dates
35055, near Cullman, AL: the frost window
Typically, the last spring freeze lands around 03/31, roughly 215 days out. Fall's first freeze usually shows up around 11/01, roughly 215 days after the last spring frost.
Cullman sits in USDA Zone 8a (10 to 15°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
Cullman's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/31 isn't a guarantee
03/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/20 and only about 1 year in 10 sees frost after that.
Cullman against the rest of the dataset
Cullman's growing season runs about 215 days, ranking 14,038 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 674 of 809.
Learn more
Two guides worth reading on 35055: local microclimates, on what one yard in Cullman can differ from the 35055 normal, and zone vs. frost date, on why Zone 8a and Cullman's frost date answer different questions.