New Market, TN 37820 Frost Dates
New Market, TN: when does the frost end?
Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/17, roughly 175 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts New Market in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 7 weeks until New Market's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/24 isn't a guarantee
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.
New Market against the rest of the dataset
About 175 days separate New Market's last and first frost, putting it 27,044 of 40,283 ZIP codes nationally. Within TN, it ranks 758 of 770.
Learn more
Before leaning on 37820's figures: zone vs. frost date explains why Zone 7b and New Market's frost date answer different questions, while the frost range explains how to read the range around New Market's dates instead of trusting one.