Tennessee, IL 62374 Frost Dates
Tennessee, IL: when does the frost end?
The last spring frost here typically falls around 04/13, about 228 days from today. Fall's first freeze usually shows up around 10/22, roughly 191 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Tennessee in Zone 6a (-10 to -5°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 8 weeks until Tennessee's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Tennessee's last frost
04/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Tennessee against the rest of the dataset
At roughly 191 frost-free days, Tennessee places 20,943 of 40,283 ZIP codes in this dataset. Within IL, it ranks 482 of 1,548.
Learn more
Before leaning on 62374's figures: the frost range explains how to read the range around Tennessee's dates instead of trusting one, while local microclimates explains what one yard in Tennessee can differ from the 62374 normal.