FrostDateCheck

Occoquan, VA 22060 Frost Dates

Frost dates for Occoquan, VA, ZIP 22060

Zone 7b

Around 04/03 is the usual last spring frost, about 218 days away. The first fall frost typically arrives around 11/08, about 217 frost-free days later.

The USDA Plant Hardiness Zone Map puts Occoquan in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

What to do before the first frost

Zone 7b around Occoquan 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.

Why 04/03 isn't a guarantee

04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 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 Occoquan compares

Occoquan's growing season runs about 217 days, ranking 13,555 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 301 of 1,178.

Learn more

the frost range explains how to read the range around Occoquan's dates instead of trusting one, and local microclimates explains what one yard in Occoquan can differ from the 22060 normal.