Alexandria, VA 22245 Frost Dates
Alexandria, VA: when does the frost end?
Around 03/24 is the usual last spring frost, about 208 days away. Fall's first freeze usually shows up around 11/18, roughly 241 days after the last spring frost.
Alexandria sits in USDA Zone 8a (10 to 15°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
With roughly 12 weeks until Alexandria's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/24 isn't a guarantee
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
At roughly 241 frost-free days, Alexandria places 8,481 of 40,283 ZIP codes in this dataset. Within VA, it ranks 26 of 1,178.
Learn more
Before leaning on 22245's figures: zone vs. frost date explains why Zone 8a and Alexandria's frost date answer different questions, while the frost range explains how to read the range around Alexandria's dates instead of trusting one.