Troy, TN 38281 Frost Dates
Frost dates for Troy, TN, ZIP 38281
Around 04/03 is the usual last spring frost, about 218 days away. The first fall frost typically arrives around 11/01, about 211 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 Troy, not a forecast for this year.
What to do before the first frost
Zone 7b around Troy has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Troy's last frost
04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 03/17 and you're betting against frost in roughly 9 years out of 10. 04/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Troy compares
Troy's growing season runs about 211 days, ranking 14,800 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 300 of 770.
Learn more
local microclimates explains what one yard in Troy can differ from the 38281 normal, and zone vs. frost date explains why Zone 7b and Troy's frost date answer different questions.