Smithfield, VA 23424 Frost Dates
Smithfield, VA: when does the frost end?
The last spring frost here typically falls around 04/01, about 216 days from today. Fall's first freeze usually shows up around 11/09, roughly 221 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Smithfield in Zone 8b (15 to 20°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 10 weeks until Smithfield'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
04/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Smithfield against the rest of the dataset
At roughly 221 frost-free days, Smithfield places 12,484 of 40,283 ZIP codes in this dataset. Within VA, it ranks 274 of 1,178.
Learn more
Before leaning on 23424's figures: zone vs. frost date explains why Zone 8b and Smithfield's frost date answer different questions, while the frost range explains how to read the range around Smithfield's dates instead of trusting one.