Sparta, NC 28623 Frost Dates
Sparta, NC: when does the frost end?
Typically, the last spring freeze lands around 04/22, roughly 237 days out. Fall's first freeze usually shows up around 10/21, roughly 180 days after the last spring frost.
Zone 7a (0 to 5°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 Sparta, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Sparta's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/22 isn't a guarantee
04/22 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 05/10 and only about 1 year in 10 sees frost after that.
Sparta against the rest of the dataset
About 180 days separate Sparta's last and first frost, putting it 24,897 of 40,283 ZIP codes nationally. Within NC, it ranks 1,012 of 1,078.
Learn more
Before leaning on 28623's figures: the frost range explains how to read the range around Sparta's dates instead of trusting one, while local microclimates explains what one yard in Sparta can differ from the 28623 normal.