Marion, NC 28737 Frost Dates
Frost dates for Marion, NC, ZIP 28737
Around 04/05 is the usual last spring frost, about 220 days away. The first fall frost typically arrives around 11/01, about 209 frost-free days later.
The USDA Plant Hardiness Zone Map puts Marion in Zone 7b (5 to 10°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 7b around Marion 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
04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/20 and you're betting against frost in roughly 9 years out of 10. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Marion compares
Marion's growing season runs about 209 days, ranking 15,185 of 40,283 US ZIP codes measured here, longest to shortest. Within NC, it ranks 772 of 1,078.
Learn more
the frost range explains how to read the range around Marion's dates instead of trusting one, and local microclimates explains what one yard in Marion can differ from the 28737 normal.