Falls Church, VA 22217 Frost Dates
Falls Church, VA: when does the frost end?
Typically, the last spring freeze lands around 04/09, roughly 224 days out. Fall's first freeze usually shows up around 10/31, roughly 202 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Falls Church 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
With roughly 9 weeks until Falls Church's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/09 isn't a guarantee
04/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/26 and only about 1 year in 10 sees frost after that.
Falls Church against the rest of the dataset
Falls Church's growing season runs about 202 days, ranking 17,182 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 597 of 1,178.
Learn more
Before leaning on 22217's figures: local microclimates explains what one yard in Falls Church can differ from the 22217 normal, while zone vs. frost date explains why Zone 7b and Falls Church's frost date answer different questions.