Dayton, TN 37332 Frost Dates
Dayton, TN: when does the frost end?
Around 04/04 is the usual last spring frost, about 219 days away. Fall's first freeze usually shows up around 10/31, roughly 208 days after the last spring frost.
Dayton 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.
Stretching the season past the first frost
With roughly 9 weeks until Dayton'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
04/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/22 and only about 1 year in 10 sees frost after that.
Dayton against the rest of the dataset
Dayton's growing season runs about 208 days, ranking 15,569 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 361 of 770.
Learn more
Before leaning on 37332's figures: zone vs. frost date explains why Zone 7b and Dayton's frost date answer different questions, while the frost range explains how to read the range around Dayton's dates instead of trusting one.