Gretna, VA 24139 Frost Dates
24139, near Gretna, VA: the frost window
The last spring frost here typically falls around 04/22, about 237 days from today. Fall's first freeze usually shows up around 10/23, roughly 183 days after the last spring frost.
Zone 7b (5 to 10°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 Gretna, not a forecast for this year.
Stretching the season past the first frost
Gretna'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.
The actual range around Gretna's last frost
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 05/09 and only about 1 year in 10 sees frost after that.
Gretna against the rest of the dataset
About 183 days separate Gretna's last and first frost, putting it 23,905 of 40,283 ZIP codes nationally. Within VA, it ranks 959 of 1,178.
Learn more
Two guides worth reading on 24139: the frost range, on how to read the range around Gretna's dates instead of trusting one, and local microclimates, on what one yard in Gretna can differ from the 24139 normal.