Haymarket, VA 20143 Frost Dates
20143, near Haymarket, VA: the frost window
The last spring frost here typically falls around 04/15, about 230 days from today. Fall's first freeze usually shows up around 10/24, roughly 194 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Haymarket in Zone 7a (0 to 5°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
Haymarket'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 Haymarket's last frost
04/15 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 04/30 and only about 1 year in 10 sees frost after that.
Haymarket against the rest of the dataset
Haymarket's growing season runs about 194 days, ranking 19,512 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 769 of 1,178.
Learn more
Two guides worth reading on 20143: the frost range, on how to read the range around Haymarket's dates instead of trusting one, and local microclimates, on what one yard in Haymarket can differ from the 20143 normal.