Williamsburg, VA 23154 Frost Dates
When can you plant in Williamsburg, VA?
The last spring frost here typically falls around 04/01, about 216 days from today. The first fall frost typically arrives around 11/10, about 223 frost-free days later.
Williamsburg 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
About 11 weeks of growing season left in Williamsburg before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/20 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Williamsburg compares
At roughly 223 frost-free days, Williamsburg places 12,033 of 40,283 ZIP codes in this dataset. Within VA, it ranks 205 of 1,178.
Learn more
zone vs. frost date covers why Zone 8a and Williamsburg's frost date answer different questions. the frost range covers how to read the range around Williamsburg's dates instead of trusting one.