Princeton, NC 27569 Frost Dates
Frost dates for Princeton, NC, ZIP 27569
The last spring frost here typically falls around 03/28, about 212 days from today. The first fall frost typically arrives around 11/12, about 231 frost-free days later.
Princeton sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 8a around Princeton has about 11 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 03/28 isn't a guarantee
03/28 is the middle of 30 years of NOAA records, not a promise. Plant by 03/09 and you're betting against frost in roughly 9 years out of 10. 04/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Princeton compares
Princeton's growing season runs about 231 days, ranking 10,223 of 40,283 US ZIP codes measured here, longest to shortest. Within NC, it ranks 198 of 1,078.
Learn more
local microclimates explains what one yard in Princeton can differ from the 27569 normal, and zone vs. frost date explains why Zone 8a and Princeton's frost date answer different questions.