Doyle, TN 38579 Frost Dates
Doyle, TN: when does the frost end?
Around 04/18 is the usual last spring frost, about 233 days away. Fall's first freeze usually shows up around 10/22, roughly 187 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 Doyle, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Doyle'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
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
Doyle against the rest of the dataset
Doyle's growing season runs about 187 days, ranking 22,548 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 709 of 770.
Learn more
Before leaning on 38579's figures: the frost range explains how to read the range around Doyle's dates instead of trusting one, while local microclimates explains what one yard in Doyle can differ from the 38579 normal.