Sylvan Springs, AL 35118 Frost Dates
Sylvan Springs, AL: when does the frost end?
Typically, the last spring freeze lands around 03/23, roughly 207 days out. Fall's first freeze usually shows up around 11/10, roughly 231 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Sylvan Springs in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 11 weeks until Sylvan Springs's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/23 isn't a guarantee
03/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/11 and only about 1 year in 10 sees frost after that.
Sylvan Springs against the rest of the dataset
Sylvan Springs's growing season runs about 231 days, ranking 10,220 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 489 of 809.
Learn more
Before leaning on 35118's figures: local microclimates explains what one yard in Sylvan Springs can differ from the 35118 normal, while zone vs. frost date explains why Zone 8a and Sylvan Springs's frost date answer different questions.