Smithfield, VA 23430 Frost Dates
Frost dates for Smithfield, VA, ZIP 23430
The last spring frost here typically falls around 04/01, about 216 days from today. The first fall frost typically arrives around 11/09, about 221 frost-free days later.
Smithfield 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.
What to do before the first frost
Zone 8a around Smithfield has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Smithfield's last frost
04/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/18 and you're betting against frost in roughly 9 years out of 10. 04/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Smithfield compares
About 221 days separate Smithfield's last and first frost, putting it 12,485 of 40,283 ZIP codes nationally. Within VA, it ranks 275 of 1,178.
Learn more
zone vs. frost date explains why Zone 8a and Smithfield's frost date answer different questions, and the frost range explains how to read the range around Smithfield's dates instead of trusting one.