Manassas, VA 22195 Frost Dates
22195, near Manassas, VA: the frost window
Around 04/15 is the usual last spring frost, about 230 days away. Fall's first freeze usually shows up around 10/24, roughly 194 days after the last spring frost.
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.
Stretching the season past the first frost
Manassas's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/15 isn't a guarantee
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Manassas against the rest of the dataset
Manassas's growing season runs about 194 days, ranking 19,428 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 756 of 1,178.
Learn more
Two guides worth reading on 22195: the frost range, on how to read the range around Manassas's dates instead of trusting one, and local microclimates, on what one yard in Manassas can differ from the 22195 normal.