Collierville, TN 38017 Frost Dates
Collierville, TN: when does the frost end?
Around 03/29 is the usual last spring frost, about 213 days away. Fall's first freeze usually shows up around 11/03, roughly 220 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Collierville 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 Collierville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Collierville's last frost
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 04/15 and only about 1 year in 10 sees frost after that.
Collierville against the rest of the dataset
At roughly 220 frost-free days, Collierville places 12,678 of 40,283 ZIP codes in this dataset. Within TN, it ranks 130 of 770.
Learn more
Before leaning on 38017's figures: the frost range explains how to read the range around Collierville's dates instead of trusting one, while local microclimates explains what one yard in Collierville can differ from the 38017 normal.