Bluffton, SC 29910 Frost Dates
Bluffton, SC: when does the frost end?
Around 03/03 is the usual last spring frost, about 187 days away. Fall's first freeze usually shows up around 12/09, roughly 282 days after the last spring frost.
Zone 9a (20 to 25°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 Bluffton, not a forecast for this year.
Stretching the season past the first frost
With roughly 15 weeks until Bluffton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/20 and only about 1 year in 10 sees frost after that.
Bluffton against the rest of the dataset
Bluffton's growing season runs about 282 days, ranking 4,770 of 40,283 US ZIP codes measured here, longest to shortest. Within SC, it ranks 17 of 519.
Learn more
Before leaning on 29910's figures: local microclimates explains what one yard in Bluffton can differ from the 29910 normal, while zone vs. frost date explains why Zone 9a and Bluffton's frost date answer different questions.