Woodlawn, IL 62898 Frost Dates
Woodlawn, IL: when does the frost end?
Typically, the last spring freeze lands around 04/11, roughly 226 days out. Fall's first freeze usually shows up around 10/22, roughly 193 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Woodlawn in Zone 6b (-5 to 0°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 Woodlawn's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/11 isn't a guarantee
04/11 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 04/26 and only about 1 year in 10 sees frost after that.
Woodlawn against the rest of the dataset
At roughly 193 frost-free days, Woodlawn places 20,033 of 40,283 ZIP codes in this dataset. Within IL, it ranks 405 of 1,548.
Learn more
Before leaning on 62898's figures: the frost range explains how to read the range around Woodlawn's dates instead of trusting one, while local microclimates explains what one yard in Woodlawn can differ from the 62898 normal.