Clio, MI 48420 Frost Dates
Clio, MI: when does the frost end?
Typically, the last spring freeze lands around 05/03, roughly 248 days out. Fall's first freeze usually shows up around 10/13, roughly 162 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Clio 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 7 weeks until Clio'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
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Clio against the rest of the dataset
At roughly 162 frost-free days, Clio places 31,750 of 40,283 ZIP codes in this dataset. Within MI, it ranks 548 of 1,153.
Learn more
Before leaning on 48420's figures: the frost range explains how to read the range around Clio's dates instead of trusting one, while local microclimates explains what one yard in Clio can differ from the 48420 normal.