Johnson City, TN 37684 Frost Dates
Johnson City, TN: when does the frost end?
The last spring frost here typically falls around 04/16, about 231 days from today. 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 Johnson 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 Johnson 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.
Johnson City against the rest of the dataset
About 190 days separate Johnson City's last and first frost, putting it 21,010 of 40,283 ZIP codes nationally. Within TN, it ranks 654 of 770.
Learn more
Before leaning on 37684's figures: local microclimates explains what one yard in Johnson City can differ from the 37684 normal, while zone vs. frost date explains why Zone 7b and Johnson City's frost date answer different questions.