Rock Hill, SC 29732 Frost Dates
When can you plant in Rock Hill, SC?
Typically, the last spring freeze lands around 03/31, roughly 215 days out. The first fall frost typically arrives around 11/04, about 218 frost-free days later.
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 Rock Hill, not a forecast for this year.
What to do before the first frost
About 10 weeks of growing season left in Rock Hill before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/31 isn't a guarantee
03/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/13 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rock Hill compares
Rock Hill's growing season runs about 218 days, ranking 13,183 of 40,283 US ZIP codes measured here, longest to shortest. Within SC, it ranks 435 of 519.
Learn more
local microclimates covers what one yard in Rock Hill can differ from the 29732 normal. zone vs. frost date covers why Zone 8a and Rock Hill's frost date answer different questions.