Warrenton, NC 27589 Frost Dates
Frost dates for Warrenton, NC, ZIP 27589
The last spring frost here typically falls around 04/03, about 218 days from today. The first fall frost typically arrives around 11/05, about 217 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 Warrenton, not a forecast for this year.
What to do before the first frost
Zone 8a around Warrenton has about 10 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 Warrenton's last frost
04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 03/18 and you're betting against frost in roughly 9 years out of 10. 04/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Warrenton compares
Warrenton's growing season runs about 217 days, ranking 13,571 of 40,283 US ZIP codes measured here, longest to shortest. Within NC, it ranks 677 of 1,078.
Learn more
local microclimates explains what one yard in Warrenton can differ from the 27589 normal, and zone vs. frost date explains why Zone 8a and Warrenton's frost date answer different questions.