Alexandria, VA 22305 Frost Dates
When can you plant in Alexandria, VA?
Typically, the last spring freeze lands around 03/24, roughly 208 days out. The first fall frost typically arrives around 11/18, about 241 frost-free days later.
The USDA Plant Hardiness Zone Map puts Alexandria in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's 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.
The actual range around Alexandria's last frost
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 8,486 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 31 of 1,178.
Learn more
the frost range covers how to read the range around Alexandria's dates instead of trusting one. local microclimates covers what one yard in Alexandria can differ from the 22305 normal.