Alexandria, VA 22333 Frost Dates
22333, near Alexandria, VA: the frost window
The last spring frost here typically falls around 03/24, about 208 days from today. Fall's first freeze usually shows up around 11/18, roughly 241 days after the last spring frost.
Alexandria 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
Alexandria's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Alexandria's last frost
03/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/06 and only about 1 year in 10 sees frost after that.
Alexandria against the rest of the dataset
Alexandria's growing season runs about 241 days, ranking 8,494 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 39 of 1,178.
Learn more
Two guides worth reading on 22333: zone vs. frost date, on why Zone 7b and Alexandria's frost date answer different questions, and the frost range, on how to read the range around Alexandria's dates instead of trusting one.