Knightdale, NC 27629 Frost Dates
When can you plant in Knightdale, NC?
Around 03/28 is the usual last spring frost, about 212 days away. The first fall frost typically arrives around 11/08, about 229 frost-free days later.
Knightdale 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
About 10 weeks of growing season left in Knightdale before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
03/28 is the middle of 30 years of NOAA records, not a promise. Plant by 03/08 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Knightdale compares
About 229 days separate Knightdale's last and first frost, putting it 10,556 of 40,283 ZIP codes nationally. Within NC, it ranks 274 of 1,078.
Learn more
zone vs. frost date covers why Zone 8a and Knightdale's frost date answer different questions. the frost range covers how to read the range around Knightdale's dates instead of trusting one.