Leesburg, VA 20175 Frost Dates
20175, near Leesburg, VA: the frost window
Around 04/16 is the usual last spring frost, about 231 days away. Fall's first freeze usually shows up around 10/25, roughly 189 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Leesburg 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
Leesburg'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
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 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.
Leesburg against the rest of the dataset
About 189 days separate Leesburg's last and first frost, putting it 21,400 of 40,283 ZIP codes nationally. Within VA, it ranks 864 of 1,178.
Learn more
Two guides worth reading on 20175: local microclimates, on what one yard in Leesburg can differ from the 20175 normal, and zone vs. frost date, on why Zone 7b and Leesburg's frost date answer different questions.