Hartsville/Trousdale County, TN 37074 Frost Dates
When can you plant in Hartsville/Trousdale County, TN?
Around 04/10 is the usual last spring frost, about 225 days away. The first fall frost typically arrives around 10/30, about 202 frost-free days later.
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 Hartsville/Trousdale County, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Hartsville/Trousdale County before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/10 isn't a guarantee
04/10 is the middle of 30 years of NOAA records, not a promise. Plant by 03/22 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hartsville/Trousdale County compares
Hartsville/Trousdale County's growing season runs about 202 days, ranking 17,193 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 536 of 770.
Learn more
local microclimates covers what one yard in Hartsville/Trousdale County can differ from the 37074 normal. zone vs. frost date covers why Zone 7b and Hartsville/Trousdale County's frost date answer different questions.