Mount Jackson, VA 22842 Frost Dates
Frost dates for Mount Jackson, VA, ZIP 22842
The last spring frost here typically falls around 04/25, about 240 days from today. The first fall frost typically arrives around 10/19, about 174 frost-free days later.
Zone 7a (0 to 5°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 Mount Jackson, not a forecast for this year.
What to do before the first frost
Zone 7a around Mount Jackson has about 7 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 Mount Jackson's last frost
04/25 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mount Jackson compares
At roughly 174 frost-free days, Mount Jackson places 27,504 of 40,283 ZIP codes in this dataset. Within VA, it ranks 1,094 of 1,178.
Learn more
zone vs. frost date explains why Zone 7a and Mount Jackson's frost date answer different questions, and the frost range explains how to read the range around Mount Jackson's dates instead of trusting one.