New Johnsonville, TN 38341 Frost Dates
New Johnsonville, TN: when does the frost end?
The last spring frost here typically falls around 04/03, about 218 days from today. Fall's first freeze usually shows up around 11/01, roughly 214 days after the last spring frost.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for New Johnsonville, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until New Johnsonville'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
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/17 and only about 1 year in 10 sees frost after that.
New Johnsonville against the rest of the dataset
At roughly 214 frost-free days, New Johnsonville places 14,270 of 40,283 ZIP codes in this dataset. Within TN, it ranks 243 of 770.
Learn more
Before leaning on 38341's figures: zone vs. frost date explains why Zone 7b and New Johnsonville's frost date answer different questions, while the frost range explains how to read the range around New Johnsonville's dates instead of trusting one.