Raleigh, NC 27604 Frost Dates
Frost dates for Raleigh, NC, ZIP 27604
Typically, the last spring freeze lands around 03/28, roughly 212 days out. The first fall frost typically arrives around 11/08, about 229 frost-free days later.
Raleigh sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 8a around Raleigh has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
03/28 is the middle of 30 years of NOAA records, not a promise. Plant by 03/08 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Raleigh compares
About 229 days separate Raleigh's last and first frost, putting it 10,500 of 40,283 ZIP codes nationally. Within NC, it ranks 241 of 1,078.
Learn more
local microclimates explains what one yard in Raleigh can differ from the 27604 normal, and zone vs. frost date explains why Zone 8a and Raleigh's frost date answer different questions.