York, AL 36901 Frost Dates
36901, near York, AL: the frost window
Typically, the last spring freeze lands around 03/20, roughly 204 days out. Fall's first freeze usually shows up around 11/09, roughly 234 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 York, not a forecast for this year.
Stretching the season past the first frost
York's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/20 isn't a guarantee
03/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
York against the rest of the dataset
About 234 days separate York's last and first frost, putting it 9,746 of 40,283 ZIP codes nationally. Within AL, it ranks 437 of 809.
Learn more
Two guides worth reading on 36901: local microclimates, on what one yard in York can differ from the 36901 normal, and zone vs. frost date, on why Zone 8b and York's frost date answer different questions.