Greensboro, NC 27403 Frost Dates
27403, near Greensboro, NC: the frost window
The last spring frost here typically falls around 04/01, about 216 days from today. Fall's first freeze usually shows up around 11/04, roughly 217 days after the last spring frost.
Zone 8a (10 to 15°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 Greensboro, not a forecast for this year.
Stretching the season past the first frost
Greensboro's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Greensboro's last frost
04/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/14 and only about 1 year in 10 sees frost after that.
Greensboro against the rest of the dataset
Greensboro's growing season runs about 217 days, ranking 13,369 of 40,283 US ZIP codes measured here, longest to shortest. Within NC, it ranks 644 of 1,078.
Learn more
Two guides worth reading on 27403: zone vs. frost date, on why Zone 8a and Greensboro's frost date answer different questions, and the frost range, on how to read the range around Greensboro's dates instead of trusting one.