Smyrna, TN 37167 Frost Dates
When can you plant in Smyrna, TN?
The last spring frost here typically falls around 04/13, about 228 days from today. The first fall frost typically arrives around 10/21, about 189 frost-free days later.
Smyrna sits in USDA Zone 7b (5 to 10°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
About 8 weeks of growing season left in Smyrna before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/13 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Smyrna compares
At roughly 189 frost-free days, Smyrna places 21,398 of 40,283 ZIP codes in this dataset. Within TN, it ranks 667 of 770.
Learn more
the frost range covers how to read the range around Smyrna's dates instead of trusting one. local microclimates covers what one yard in Smyrna can differ from the 37167 normal.