Hamilton, VA 20163 Frost Dates
20163, near Hamilton, VA: the frost window
The last spring frost here typically falls around 04/16, about 231 days from today. 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 Hamilton 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
Hamilton'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.
Hamilton against the rest of the dataset
About 189 days separate Hamilton's last and first frost, putting it 21,694 of 40,283 ZIP codes nationally. Within VA, it ranks 892 of 1,178.
Learn more
Two guides worth reading on 20163: the frost range, on how to read the range around Hamilton's dates instead of trusting one, and local microclimates, on what one yard in Hamilton can differ from the 20163 normal.