Smiths Station, AL 36877 Frost Dates
36877, near Smiths Station, AL: the frost window
Around 03/21 is the usual last spring frost, about 205 days away. Fall's first freeze usually shows up around 11/18, roughly 243 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 Smiths Station, not a forecast for this year.
Stretching the season past the first frost
Smiths Station'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.
The actual range around Smiths Station's last frost
03/21 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 04/13 and only about 1 year in 10 sees frost after that.
Smiths Station against the rest of the dataset
About 243 days separate Smiths Station's last and first frost, putting it 8,292 of 40,283 ZIP codes nationally. Within AL, it ranks 266 of 809.
Learn more
Two guides worth reading on 36877: the frost range, on how to read the range around Smiths Station's dates instead of trusting one, and local microclimates, on what one yard in Smiths Station can differ from the 36877 normal.