Tusculum, TN 37681 Frost Dates
37681, near Tusculum, TN: the frost window
Around 04/09 is the usual last spring frost, about 224 days away. Fall's first freeze usually shows up around 10/29, roughly 203 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 Tusculum, not a forecast for this year.
Stretching the season past the first frost
Tusculum's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/25 and only about 1 year in 10 sees frost after that.
Tusculum against the rest of the dataset
About 203 days separate Tusculum's last and first frost, putting it 16,921 of 40,283 ZIP codes nationally. Within TN, it ranks 504 of 770.
Learn more
Two guides worth reading on 37681: the frost range, on how to read the range around Tusculum's dates instead of trusting one, and local microclimates, on what one yard in Tusculum can differ from the 37681 normal.