Grundy, VA 24658 Frost Dates
24658, near Grundy, VA: the frost window
Typically, the last spring freeze lands around 04/21, roughly 236 days out. Fall's first freeze usually shows up around 10/26, roughly 189 days after the last spring frost.
Grundy sits in USDA Zone 7a (0 to 5°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
Grundy'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.
Why 04/21 isn't a guarantee
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 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.
Grundy against the rest of the dataset
About 189 days separate Grundy's last and first frost, putting it 21,669 of 40,283 ZIP codes nationally. Within VA, it ranks 880 of 1,178.
Learn more
Two guides worth reading on 24658: local microclimates, on what one yard in Grundy can differ from the 24658 normal, and zone vs. frost date, on why Zone 7a and Grundy's frost date answer different questions.