Mount Airy, NC 24317 Frost Dates
Mount Airy, NC: when does the frost end?
Typically, the last spring freeze lands around 04/21, roughly 236 days out. Fall's first freeze usually shows up around 10/25, roughly 185 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 8 weeks until Mount Airy's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Mount Airy's last frost
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Mount Airy against the rest of the dataset
At roughly 185 frost-free days, Mount Airy places 23,089 of 40,283 ZIP codes in this dataset. Within NC, it ranks 989 of 1,078.
Learn more
Before leaning on 24317's figures: local microclimates explains what one yard in Mount Airy can differ from the 24317 normal, while zone vs. frost date explains why Zone 7b and Mount Airy's frost date answer different questions.