Oliver Springs, TN 37840 Frost Dates
Frost dates for Oliver Springs, TN, ZIP 37840
Typically, the last spring freeze lands around 04/05, roughly 220 days out. The first fall frost typically arrives around 11/01, about 210 frost-free days later.
The USDA Plant Hardiness Zone Map puts Oliver Springs 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 Oliver Springs 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 Oliver Springs's last frost
04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 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 Oliver Springs compares
At roughly 210 frost-free days, Oliver Springs places 15,012 of 40,283 ZIP codes in this dataset. Within TN, it ranks 334 of 770.
Learn more
local microclimates explains what one yard in Oliver Springs can differ from the 37840 normal, and zone vs. frost date explains why Zone 7b and Oliver Springs's frost date answer different questions.