Shelbyville, TN 37161 Frost Dates
Shelbyville, TN: when does the frost end?
Typically, the last spring freeze lands around 04/07, roughly 222 days out. Fall's first freeze usually shows up around 10/29, roughly 204 days after the last spring frost.
Zone 7b (5 to 10°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 Shelbyville, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Shelbyville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Shelbyville's last frost
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Shelbyville against the rest of the dataset
About 204 days separate Shelbyville's last and first frost, putting it 16,520 of 40,283 ZIP codes nationally. Within TN, it ranks 455 of 770.
Learn more
Before leaning on 37161's figures: local microclimates explains what one yard in Shelbyville can differ from the 37161 normal, while zone vs. frost date explains why Zone 7b and Shelbyville's frost date answer different questions.