Petersburg, VA 23803 Frost Dates
When can you plant in Petersburg, VA?
Typically, the last spring freeze lands around 04/03, roughly 218 days out. The first fall frost typically arrives around 11/03, about 216 frost-free days later.
Petersburg sits in USDA Zone 7b (5 to 10°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 10 weeks of growing season left in Petersburg before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/03 isn't a guarantee
04/03 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. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Petersburg compares
At roughly 216 frost-free days, Petersburg places 13,726 of 40,283 ZIP codes in this dataset. Within VA, it ranks 305 of 1,178.
Learn more
zone vs. frost date covers why Zone 7b and Petersburg's frost date answer different questions. the frost range covers how to read the range around Petersburg's dates instead of trusting one.