Manassas, VA 22194 Frost Dates
Frost dates for Manassas, VA, ZIP 22194
The last spring frost here typically falls around 04/15, about 230 days from today. The first fall frost typically arrives around 10/24, about 194 frost-free days later.
Manassas 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
Zone 7b around Manassas has about 8 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 Manassas's last frost
04/15 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Manassas compares
About 194 days separate Manassas's last and first frost, putting it 19,427 of 40,283 ZIP codes nationally. Within VA, it ranks 755 of 1,178.
Learn more
local microclimates explains what one yard in Manassas can differ from the 22194 normal, and zone vs. frost date explains why Zone 7b and Manassas's frost date answer different questions.