Spartanburg, SC 29320 Frost Dates
Spartanburg, SC: when does the frost end?
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.
The USDA Plant Hardiness Zone Map puts Spartanburg in Zone 8a (10 to 15°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 10 weeks until Spartanburg'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
03/28 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
Spartanburg's growing season runs about 224 days, ranking 11,738 of 40,283 US ZIP codes measured here, longest to shortest. Within SC, it ranks 388 of 519.
Learn more
Before leaning on 29320's figures: zone vs. frost date explains why Zone 8a and Spartanburg's frost date answer different questions, while the frost range explains how to read the range around Spartanburg's dates instead of trusting one.