Lebanon, TN 37071 Frost Dates
37071, near Lebanon, TN: the frost window
Typically, the last spring freeze lands around 04/16, roughly 231 days out. Fall's first freeze usually shows up around 10/21, roughly 187 days after the last spring frost.
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.
Stretching the season past the first frost
Lebanon's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Lebanon against the rest of the dataset
Lebanon's growing season runs about 187 days, ranking 22,280 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 685 of 770.
Learn more
Two guides worth reading on 37071: local microclimates, on what one yard in Lebanon can differ from the 37071 normal, and zone vs. frost date, on why Zone 7b and Lebanon's frost date answer different questions.