Greenbrier, TN 37073 Frost Dates
Greenbrier, TN: when does the frost end?
The last spring frost here typically falls around 04/07, about 222 days from today. Fall's first freeze usually shows up around 10/28, roughly 204 days after the last spring frost.
Greenbrier sits in USDA Zone 7a (0 to 5°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
With roughly 9 weeks until Greenbrier's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/26 and only about 1 year in 10 sees frost after that.
Greenbrier against the rest of the dataset
Greenbrier's growing season runs about 204 days, ranking 16,560 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 461 of 770.
Learn more
Before leaning on 37073's figures: zone vs. frost date explains why Zone 7a and Greenbrier's frost date answer different questions, while the frost range explains how to read the range around Greenbrier's dates instead of trusting one.