FrostDateCheck

Durham, NC 27707 Frost Dates

27707, near Durham, NC: the frost window

Zone 8a

The last spring frost here typically falls around 04/02, about 217 days from today. Fall's first freeze usually shows up around 11/04, roughly 217 days after the last spring frost.

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 Durham, not a forecast for this year.

Stretching the season past the first frost

Durham'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.

The actual range around Durham's last frost

04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.

Durham against the rest of the dataset

At roughly 217 frost-free days, Durham places 13,380 of 40,283 ZIP codes in this dataset. Within NC, it ranks 655 of 1,078.

Learn more

Two guides worth reading on 27707: zone vs. frost date, on why Zone 8a and Durham's frost date answer different questions, and the frost range, on how to read the range around Durham's dates instead of trusting one.