Hamilton, VA 20158 Frost Dates
Hamilton, VA: when does the frost end?
Typically, the last spring freeze lands around 04/16, roughly 231 days out. Fall's first freeze usually shows up around 10/25, roughly 189 days after the last spring frost.
Hamilton sits in USDA Zone 7a (0 to 5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 8 weeks until Hamilton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
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.
Hamilton against the rest of the dataset
Hamilton's growing season runs about 189 days, ranking 21,691 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 889 of 1,178.
Learn more
Before leaning on 20158's figures: the frost range explains how to read the range around Hamilton's dates instead of trusting one, while local microclimates explains what one yard in Hamilton can differ from the 20158 normal.