Spartanburg, SC 29319 Frost Dates
Spartanburg, SC: when does the frost end?
Around 03/28 is the usual last spring frost, about 212 days away. 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.
Why 03/28 isn't a guarantee
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
About 224 days separate Spartanburg's last and first frost, putting it 11,737 of 40,283 ZIP codes nationally. Within SC, it ranks 387 of 519.
Learn more
Before leaning on 29319'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.