Aynor, SC 29544 Frost Dates
Aynor, SC: when does the frost end?
Typically, the last spring freeze lands around 03/22, roughly 206 days out. Fall's first freeze usually shows up around 11/11, 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 Aynor, not a forecast for this year.
Stretching the season past the first frost
With roughly 11 weeks until Aynor's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Aynor's last frost
03/22 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 04/13 and only about 1 year in 10 sees frost after that.
Aynor against the rest of the dataset
Aynor's growing season runs about 234 days, ranking 9,775 of 40,283 US ZIP codes measured here, longest to shortest. Within SC, it ranks 279 of 519.
Learn more
Before leaning on 29544's figures: the frost range explains how to read the range around Aynor's dates instead of trusting one, while local microclimates explains what one yard in Aynor can differ from the 29544 normal.