Florence, SC 29505 Frost Dates
Florence, SC: when does the frost end?
Around 03/19 is the usual last spring frost, about 203 days away. Fall's first freeze usually shows up around 11/13, roughly 241 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Florence in Zone 8b (15 to 20°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 Florence'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
03/19 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 04/05 and only about 1 year in 10 sees frost after that.
Florence against the rest of the dataset
Florence's growing season runs about 241 days, ranking 8,511 of 40,283 US ZIP codes measured here, longest to shortest. Within SC, it ranks 167 of 519.
Learn more
Before leaning on 29505's figures: the frost range explains how to read the range around Florence's dates instead of trusting one, while local microclimates explains what one yard in Florence can differ from the 29505 normal.