Atwood, TN 38220 Frost Dates
38220, near Atwood, TN: the frost window
The last spring frost here typically falls around 04/04, about 219 days from today. Fall's first freeze usually shows up around 10/28, roughly 206 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 Atwood, not a forecast for this year.
Stretching the season past the first frost
Atwood's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/04 isn't a guarantee
04/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Atwood against the rest of the dataset
At roughly 206 frost-free days, Atwood places 16,066 of 40,283 ZIP codes in this dataset. Within TN, it ranks 428 of 770.
Learn more
Two guides worth reading on 38220: the frost range, on how to read the range around Atwood's dates instead of trusting one, and local microclimates, on what one yard in Atwood can differ from the 38220 normal.