Poquoson, VA 23001 Frost Dates
23001, near Poquoson, VA: the frost window
Around 04/01 is the usual last spring frost, about 216 days away. Fall's first freeze usually shows up around 11/10, roughly 223 days after the last spring frost.
Poquoson sits in USDA Zone 8a (10 to 15°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
Poquoson's growing season runs out in roughly 11 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
04/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/15 and only about 1 year in 10 sees frost after that.
Poquoson against the rest of the dataset
At roughly 223 frost-free days, Poquoson places 12,043 of 40,283 ZIP codes in this dataset. Within VA, it ranks 209 of 1,178.
Learn more
Two guides worth reading on 23001: zone vs. frost date, on why Zone 8a and Poquoson's frost date answer different questions, and the frost range, on how to read the range around Poquoson's dates instead of trusting one.