Mount Airy, NC 27049 Frost Dates
Frost dates for Mount Airy, NC, ZIP 27049
The last spring frost here typically falls around 04/21, about 236 days from today. The first fall frost typically arrives around 10/25, about 185 frost-free days later.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Mount Airy, not a forecast for this year.
What to do before the first frost
Zone 7b around Mount Airy has about 8 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
04/21 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mount Airy compares
Mount Airy's growing season runs about 185 days, ranking 23,091 of 40,283 US ZIP codes measured here, longest to shortest. Within NC, it ranks 991 of 1,078.
Learn more
zone vs. frost date explains why Zone 7b and Mount Airy's frost date answer different questions, and the frost range explains how to read the range around Mount Airy's dates instead of trusting one.