Myrtle Beach, SC 29578 Frost Dates
When can you plant in Myrtle Beach, SC?
The last spring frost here typically falls around 03/13, about 197 days from today. The first fall frost typically arrives around 11/20, about 255 frost-free days later.
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 Myrtle Beach, not a forecast for this year.
What to do before the first frost
About 12 weeks of growing season left in Myrtle Beach before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Myrtle Beach's last frost
03/13 is the middle of 30 years of NOAA records, not a promise. Plant by 02/20 and you're betting against frost in roughly 9 years out of 10. 03/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Myrtle Beach compares
About 255 days separate Myrtle Beach's last and first frost, putting it 6,889 of 40,283 ZIP codes nationally. Within SC, it ranks 67 of 519.
Learn more
local microclimates covers what one yard in Myrtle Beach can differ from the 29578 normal. zone vs. frost date covers why Zone 8b and Myrtle Beach's frost date answer different questions.