Vienna, VA 22109 Frost Dates
Frost dates for Vienna, VA, ZIP 22109
The last spring frost here typically falls around 04/14, about 229 days from today. The first fall frost typically arrives around 10/29, about 198 frost-free days later.
Zone 7b (5 to 10°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 Vienna, not a forecast for this year.
What to do before the first frost
Zone 7b around Vienna has about 9 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.
The actual range around Vienna's last frost
04/14 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 and you're betting against frost in roughly 9 years out of 10. 04/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Vienna compares
At roughly 198 frost-free days, Vienna places 18,366 of 40,283 ZIP codes in this dataset. Within VA, it ranks 694 of 1,178.
Learn more
zone vs. frost date explains why Zone 7b and Vienna's frost date answer different questions, and the frost range explains how to read the range around Vienna's dates instead of trusting one.