Jonesborough, TN 37659 Frost Dates
37659, near Jonesborough, TN: the frost window
The last spring frost here typically falls around 04/16, about 231 days from today. Fall's first freeze usually shows up around 10/24, roughly 190 days after the last spring frost.
Jonesborough 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
Jonesborough's growing season runs out in roughly 8 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 Jonesborough's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Jonesborough against the rest of the dataset
About 190 days separate Jonesborough's last and first frost, putting it 21,133 of 40,283 ZIP codes nationally. Within TN, it ranks 657 of 770.
Learn more
Two guides worth reading on 37659: local microclimates, on what one yard in Jonesborough can differ from the 37659 normal, and zone vs. frost date, on why Zone 7a and Jonesborough's frost date answer different questions.