Alexandria, VA 22332 Frost Dates
Frost dates for Alexandria, VA, ZIP 22332
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.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Alexandria, not a forecast for this year.
What to do before the first frost
Zone 8a around Alexandria has about 12 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 03/24 isn't a guarantee
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
About 241 days separate Alexandria's last and first frost, putting it 8,493 of 40,283 ZIP codes nationally. Within VA, it ranks 38 of 1,178.
Learn more
the frost range explains how to read the range around Alexandria's dates instead of trusting one, and local microclimates explains what one yard in Alexandria can differ from the 22332 normal.