Plainview, TN 37721 Frost Dates
37721, near Plainview, TN: the frost window
Typically, the last spring freeze lands around 04/24, roughly 239 days out. Fall's first freeze usually shows up around 10/17, roughly 175 days after the last spring frost.
Plainview 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
Plainview's growing season runs out in roughly 7 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
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Plainview against the rest of the dataset
Plainview's growing season runs about 175 days, ranking 26,966 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 756 of 770.
Learn more
Two guides worth reading on 37721: local microclimates, on what one yard in Plainview can differ from the 37721 normal, and zone vs. frost date, on why Zone 7b and Plainview's frost date answer different questions.