South Boston, VA 24535 Frost Dates
24535, near South Boston, VA: the frost window
Typically, the last spring freeze lands around 04/10, roughly 225 days out. Fall's first freeze usually shows up around 10/30, roughly 202 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts South Boston in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
South Boston's growing season runs out in roughly 9 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
04/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
South Boston against the rest of the dataset
At roughly 202 frost-free days, South Boston places 17,217 of 40,283 ZIP codes in this dataset. Within VA, it ranks 608 of 1,178.
Learn more
Two guides worth reading on 24535: the frost range, on how to read the range around South Boston's dates instead of trusting one, and local microclimates, on what one yard in South Boston can differ from the 24535 normal.