Spartanburg, SC 29304 Frost Dates
29304, near Spartanburg, SC: the frost window
The last spring frost here typically falls around 03/28, about 212 days from today. Fall's first freeze usually shows up around 11/07, roughly 224 days after the last spring frost.
Zone 8a (10 to 15°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 Spartanburg, not a forecast for this year.
Stretching the season past the first frost
Spartanburg's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
03/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/14 and only about 1 year in 10 sees frost after that.
Spartanburg against the rest of the dataset
At roughly 224 frost-free days, Spartanburg places 11,735 of 40,283 ZIP codes in this dataset. Within SC, it ranks 385 of 519.
Learn more
Two guides worth reading on 29304: zone vs. frost date, on why Zone 8a and Spartanburg's frost date answer different questions, and the frost range, on how to read the range around Spartanburg's dates instead of trusting one.