Mount Holly, NC 28120 Frost Dates
When can you plant in Mount Holly, NC?
The last spring frost here typically falls around 03/30, about 214 days from today. The first fall frost typically arrives around 11/03, about 221 frost-free days later.
The USDA Plant Hardiness Zone Map puts Mount Holly in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 10 weeks of growing season left in Mount Holly before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/30 isn't a guarantee
03/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/12 and you're betting against frost in roughly 9 years out of 10. 04/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mount Holly compares
About 221 days separate Mount Holly's last and first frost, putting it 12,455 of 40,283 ZIP codes nationally. Within NC, it ranks 529 of 1,078.
Learn more
local microclimates covers what one yard in Mount Holly can differ from the 28120 normal. zone vs. frost date covers why Zone 8a and Mount Holly's frost date answer different questions.