Lebanon, TN 37090 Frost Dates
Frost dates for Lebanon, TN, ZIP 37090
Around 04/16 is the usual last spring frost, about 231 days away. The first fall frost typically arrives around 10/21, about 187 frost-free days later.
Lebanon sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 7b around Lebanon 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 Lebanon's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lebanon compares
Lebanon's growing season runs about 187 days, ranking 22,282 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 687 of 770.
Learn more
the frost range explains how to read the range around Lebanon's dates instead of trusting one, and local microclimates explains what one yard in Lebanon can differ from the 37090 normal.