Cleveland, TN 37320 Frost Dates
37320, near Cleveland, TN: the frost window
Typically, the last spring freeze lands around 03/24, roughly 208 days out. Fall's first freeze usually shows up around 11/09, roughly 230 days after the last spring frost.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Cleveland, not a forecast for this year.
Stretching the season past the first frost
Cleveland's growing season runs out in roughly 10 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
03/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Cleveland against the rest of the dataset
About 230 days separate Cleveland's last and first frost, putting it 10,308 of 40,283 ZIP codes nationally. Within TN, it ranks 56 of 770.
Learn more
Two guides worth reading on 37320: the frost range, on how to read the range around Cleveland's dates instead of trusting one, and local microclimates, on what one yard in Cleveland can differ from the 37320 normal.