Bluff City, TN 37699 Frost Dates
Bluff City, TN: when does the frost end?
Around 04/16 is the usual last spring frost, about 231 days away. Fall's first freeze usually shows up around 10/24, roughly 190 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Bluff City 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 8 weeks until Bluff City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Bluff City against the rest of the dataset
About 190 days separate Bluff City's last and first frost, putting it 21,203 of 40,283 ZIP codes nationally. Within TN, it ranks 665 of 770.
Learn more
Before leaning on 37699's figures: zone vs. frost date explains why Zone 7b and Bluff City's frost date answer different questions, while the frost range explains how to read the range around Bluff City's dates instead of trusting one.