North Augusta, SC 30909 Frost Dates
30909, near North Augusta, SC: the frost window
Typically, the last spring freeze lands around 02/27, roughly 183 days out. Fall's first freeze usually shows up around 12/04, roughly 283 days after the last spring frost.
North Augusta 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
North Augusta's growing season runs out in roughly 14 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 02/27 isn't a guarantee
02/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/19 and only about 1 year in 10 sees frost after that.
North Augusta against the rest of the dataset
North Augusta's growing season runs about 283 days, ranking 4,739 of 40,283 US ZIP codes measured here, longest to shortest. Within SC, it ranks 11 of 519.
Learn more
Two guides worth reading on 30909: the frost range, on how to read the range around North Augusta's dates instead of trusting one, and local microclimates, on what one yard in North Augusta can differ from the 30909 normal.