Hartsville/Trousdale County, TN 37031 Frost Dates
37031, near Hartsville/Trousdale County, TN: the frost window
Typically, the last spring freeze lands around 04/16, roughly 231 days out. Fall's first freeze usually shows up around 10/23, roughly 189 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hartsville/Trousdale County in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Hartsville/Trousdale County'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 Hartsville/Trousdale County's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
Hartsville/Trousdale County against the rest of the dataset
At roughly 189 frost-free days, Hartsville/Trousdale County places 21,461 of 40,283 ZIP codes in this dataset. Within TN, it ranks 675 of 770.
Learn more
Two guides worth reading on 37031: the frost range, on how to read the range around Hartsville/Trousdale County's dates instead of trusting one, and local microclimates, on what one yard in Hartsville/Trousdale County can differ from the 37031 normal.