Swansboro, NC 28582 Frost Dates
Frost dates for Swansboro, NC, ZIP 28582
Around 04/06 is the usual last spring frost, about 221 days away. The first fall frost typically arrives around 11/01, about 204 frost-free days later.
Swansboro sits in USDA Zone 8b (15 to 20°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 8b around Swansboro has about 9 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
04/06 is the middle of 30 years of NOAA records, not a promise. Plant by 03/23 and you're betting against frost in roughly 9 years out of 10. 04/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Swansboro compares
About 204 days separate Swansboro's last and first frost, putting it 16,588 of 40,283 ZIP codes nationally. Within NC, it ranks 835 of 1,078.
Learn more
local microclimates explains what one yard in Swansboro can differ from the 28582 normal, and zone vs. frost date explains why Zone 8b and Swansboro's frost date answer different questions.