Morrisville, NC 27617 Frost Dates
When can you plant in Morrisville, NC?
Typically, the last spring freeze lands around 03/31, roughly 215 days out. The first fall frost typically arrives around 11/04, about 219 frost-free days later.
Morrisville 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 Morrisville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/31 isn't a guarantee
03/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/15 and you're betting against frost in roughly 9 years out of 10. 04/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Morrisville compares
About 219 days separate Morrisville's last and first frost, putting it 12,965 of 40,283 ZIP codes nationally. Within NC, it ranks 609 of 1,078.
Learn more
zone vs. frost date covers why Zone 8a and Morrisville's frost date answer different questions. the frost range covers how to read the range around Morrisville's dates instead of trusting one.