Jefferson, NC 28617 Frost Dates
Jefferson, NC: when does the frost end?
Typically, the last spring freeze lands around 05/07, roughly 252 days out. Fall's first freeze usually shows up around 10/08, roughly 154 days after the last spring frost.
Jefferson sits in USDA Zone 7a (0 to 5°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
With roughly 6 weeks until Jefferson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Jefferson's last frost
05/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/24 and only about 1 year in 10 sees frost after that.
Jefferson against the rest of the dataset
At roughly 154 frost-free days, Jefferson places 34,341 of 40,283 ZIP codes in this dataset. Within NC, it ranks 1,072 of 1,078.
Learn more
Before leaning on 28617's figures: local microclimates explains what one yard in Jefferson can differ from the 28617 normal, while zone vs. frost date explains why Zone 7a and Jefferson's frost date answer different questions.