Dumfries, VA 22026 Frost Dates
When can you plant in Dumfries, VA?
Around 03/28 is the usual last spring frost, about 212 days away. The first fall frost typically arrives around 11/08, about 226 frost-free days later.
The USDA Plant Hardiness Zone Map puts Dumfries 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
About 10 weeks of growing season left in Dumfries before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Dumfries's last frost
03/28 is the middle of 30 years of NOAA records, not a promise. Plant by 03/14 and you're betting against frost in roughly 9 years out of 10. 04/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dumfries compares
At roughly 226 frost-free days, Dumfries places 11,188 of 40,283 ZIP codes in this dataset. Within VA, it ranks 141 of 1,178.
Learn more
local microclimates covers what one yard in Dumfries can differ from the 22026 normal. zone vs. frost date covers why Zone 7b and Dumfries's frost date answer different questions.