Huntsville, TN 37756 Frost Dates
Frost dates for Huntsville, TN, ZIP 37756
Around 04/18 is the usual last spring frost, about 233 days away. The first fall frost typically arrives around 10/24, about 187 frost-free days later.
The USDA Plant Hardiness Zone Map puts Huntsville in Zone 7a (0 to 5°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 7a around Huntsville has about 8 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 Huntsville's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Huntsville compares
About 187 days separate Huntsville's last and first frost, putting it 22,434 of 40,283 ZIP codes nationally. Within TN, it ranks 707 of 770.
Learn more
zone vs. frost date explains why Zone 7a and Huntsville's frost date answer different questions, and the frost range explains how to read the range around Huntsville's dates instead of trusting one.