Alexandria, VA 22312 Frost Dates
When can you plant in Alexandria, VA?
The last spring frost here typically falls around 03/24, about 208 days from today. The first fall frost typically arrives around 11/18, about 241 frost-free days later.
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.
What to do before the first frost
About 12 weeks of growing season left in Alexandria before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/07 and you're betting against frost in roughly 9 years out of 10. 04/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Alexandria compares
Alexandria's growing season runs about 241 days, ranking 8,489 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 34 of 1,178.
Learn more
zone vs. frost date covers why Zone 7b and Alexandria's frost date answer different questions. the frost range covers how to read the range around Alexandria's dates instead of trusting one.