Glenview, IL 60025 Frost Dates
Glenview, IL: when does the frost end?
Typically, the last spring freeze lands around 04/26, roughly 241 days out. Fall's first freeze usually shows up around 10/21, roughly 176 days after the last spring frost.
Glenview sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 8 weeks until Glenview's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/26 isn't a guarantee
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Glenview against the rest of the dataset
Glenview's growing season runs about 176 days, ranking 26,361 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,151 of 1,548.
Learn more
Before leaning on 60025's figures: the frost range explains how to read the range around Glenview's dates instead of trusting one, while local microclimates explains what one yard in Glenview can differ from the 60025 normal.