FrostDateCheck

Jacksonville, NC 28545 Frost Dates

Frost dates for Jacksonville, NC, ZIP 28545

Zone 8b

The last spring frost here typically falls around 03/23, about 207 days from today. The first fall frost typically arrives around 11/16, about 240 frost-free days later.

The USDA Plant Hardiness Zone Map puts Jacksonville in Zone 8b (15 to 20°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

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.

How much risk comes with planting early here

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

Jacksonville's growing season runs about 240 days, ranking 8,668 of 40,283 US ZIP codes measured here, longest to shortest. Within NC, it ranks 76 of 1,078.

Learn more

the frost range explains how to read the range around Jacksonville's dates instead of trusting one, and local microclimates explains what one yard in Jacksonville can differ from the 28545 normal.