Christiansburg, VA 24073 Frost Dates
24073, near Christiansburg, VA: the frost window
Around 04/19 is the usual last spring frost, about 234 days away. Fall's first freeze usually shows up around 10/23, roughly 186 days after the last spring frost.
Christiansburg 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
Christiansburg'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
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.
Christiansburg against the rest of the dataset
At roughly 186 frost-free days, Christiansburg places 22,728 of 40,283 ZIP codes in this dataset. Within VA, it ranks 925 of 1,178.
Learn more
Two guides worth reading on 24073: zone vs. frost date, on why Zone 7a and Christiansburg's frost date answer different questions, and the frost range, on how to read the range around Christiansburg's dates instead of trusting one.