Big Sandy, TN 38256 Frost Dates
Frost dates for Big Sandy, TN, ZIP 38256
Around 04/07 is the usual last spring frost, about 222 days away. The first fall frost typically arrives around 10/31, about 206 frost-free days later.
The USDA Plant Hardiness Zone Map puts Big Sandy in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7b around Big Sandy 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.
Why 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/23 and you're betting against frost in roughly 9 years out of 10. 04/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Big Sandy compares
At roughly 206 frost-free days, Big Sandy places 16,098 of 40,283 ZIP codes in this dataset. Within TN, it ranks 434 of 770.
Learn more
local microclimates explains what one yard in Big Sandy can differ from the 38256 normal, and zone vs. frost date explains why Zone 7b and Big Sandy's frost date answer different questions.