Washington, VA 22640 Frost Dates
Washington, VA: when does the frost end?
Typically, the last spring freeze lands around 04/13, roughly 228 days out. Fall's first freeze usually shows up around 10/28, roughly 196 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Washington 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
With roughly 9 weeks until Washington's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Washington's last frost
04/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Washington against the rest of the dataset
About 196 days separate Washington's last and first frost, putting it 19,125 of 40,283 ZIP codes nationally. Within VA, it ranks 732 of 1,178.
Learn more
Before leaning on 22640's figures: zone vs. frost date explains why Zone 7a and Washington's frost date answer different questions, while the frost range explains how to read the range around Washington's dates instead of trusting one.