Germantown, TN 38138 Frost Dates
Germantown, TN: when does the frost end?
Typically, the last spring freeze lands around 03/29, roughly 213 days out. Fall's first freeze usually shows up around 11/05, roughly 223 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Germantown in Zone 8a (10 to 15°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 10 weeks until Germantown'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
03/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/13 and only about 1 year in 10 sees frost after that.
Germantown against the rest of the dataset
Germantown's growing season runs about 223 days, ranking 12,020 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 101 of 770.
Learn more
Before leaning on 38138's figures: local microclimates explains what one yard in Germantown can differ from the 38138 normal, while zone vs. frost date explains why Zone 8a and Germantown's frost date answer different questions.