Thomaston, AL 36783 Frost Dates
36783, near Thomaston, AL: the frost window
Typically, the last spring freeze lands around 03/18, roughly 202 days out. Fall's first freeze usually shows up around 11/11, roughly 241 days after the last spring frost.
Thomaston 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
Thomaston's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/18 isn't a guarantee
03/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/05 and only about 1 year in 10 sees frost after that.
Thomaston against the rest of the dataset
At roughly 241 frost-free days, Thomaston places 8,624 of 40,283 ZIP codes in this dataset. Within AL, it ranks 281 of 809.
Learn more
Two guides worth reading on 36783: zone vs. frost date, on why Zone 8b and Thomaston's frost date answer different questions, and the frost range, on how to read the range around Thomaston's dates instead of trusting one.