Denmark, SC 29042 Frost Dates
29042, near Denmark, SC: the frost window
Around 03/20 is the usual last spring frost, about 204 days away. Fall's first freeze usually shows up around 11/13, roughly 238 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 Denmark, not a forecast for this year.
Stretching the season past the first frost
Denmark's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Denmark's last frost
03/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Denmark against the rest of the dataset
At roughly 238 frost-free days, Denmark places 8,975 of 40,283 ZIP codes in this dataset. Within SC, it ranks 216 of 519.
Learn more
Two guides worth reading on 29042: zone vs. frost date, on why Zone 8b and Denmark's frost date answer different questions, and the frost range, on how to read the range around Denmark's dates instead of trusting one.