Cornelius, NC 28031 Frost Dates
28031, near Cornelius, NC: the frost window
The last spring frost here typically falls around 03/30, about 214 days from today. Fall's first freeze usually shows up around 11/03, roughly 221 days after the last spring frost.
Cornelius 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.
Stretching the season past the first frost
Cornelius's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/30 isn't a guarantee
03/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/14 and only about 1 year in 10 sees frost after that.
Cornelius against the rest of the dataset
At roughly 221 frost-free days, Cornelius places 12,446 of 40,283 ZIP codes in this dataset. Within NC, it ranks 526 of 1,078.
Learn more
Two guides worth reading on 28031: zone vs. frost date, on why Zone 8a and Cornelius's frost date answer different questions, and the frost range, on how to read the range around Cornelius's dates instead of trusting one.