Germantown, TN 38120 Frost Dates
Frost dates for Germantown, TN, ZIP 38120
The last spring frost here typically falls around 03/29, about 213 days from today. The first fall frost typically arrives around 11/05, about 223 frost-free days later.
Germantown sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 8a around Germantown has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 03/29 isn't a guarantee
03/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/09 and you're betting against frost in roughly 9 years out of 10. 04/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Germantown compares
About 223 days separate Germantown's last and first frost, putting it 12,019 of 40,283 ZIP codes nationally. Within TN, it ranks 100 of 770.
Learn more
zone vs. frost date explains why Zone 8a and Germantown's frost date answer different questions, and the frost range explains how to read the range around Germantown's dates instead of trusting one.