Jacksonville, NC 28541 Frost Dates
Frost dates for Jacksonville, NC, ZIP 28541
Typically, the last spring freeze lands around 03/23, roughly 207 days out. The first fall frost typically arrives around 11/16, about 240 frost-free days later.
Jacksonville 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 Jacksonville has about 11 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.
Why 03/23 isn't a guarantee
03/23 is the middle of 30 years of NOAA records, not a promise. Plant by 03/02 and you're betting against frost in roughly 9 years out of 10. 04/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jacksonville compares
At roughly 240 frost-free days, Jacksonville places 8,664 of 40,283 ZIP codes in this dataset. Within NC, it ranks 72 of 1,078.
Learn more
zone vs. frost date explains why Zone 8b and Jacksonville's frost date answer different questions, and the frost range explains how to read the range around Jacksonville's dates instead of trusting one.