Flat Rock, NC 28784 Frost Dates
28784, near Flat Rock, NC: the frost window
Typically, the last spring freeze lands around 04/14, roughly 229 days out. Fall's first freeze usually shows up around 10/25, roughly 192 days after the last spring frost.
Flat Rock sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Flat Rock's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/01 and only about 1 year in 10 sees frost after that.
Flat Rock against the rest of the dataset
At roughly 192 frost-free days, Flat Rock places 20,311 of 40,283 ZIP codes in this dataset. Within NC, it ranks 959 of 1,078.
Learn more
Two guides worth reading on 28784: zone vs. frost date, on why Zone 7b and Flat Rock's frost date answer different questions, and the frost range, on how to read the range around Flat Rock's dates instead of trusting one.