Campus, IL 60920 Frost Dates
Campus, IL: when does the frost end?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. Fall's first freeze usually shows up around 10/15, roughly 170 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Campus in Zone 5b (-15 to -10°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 Campus'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
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Campus against the rest of the dataset
At roughly 170 frost-free days, Campus places 29,257 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,419 of 1,548.
Learn more
Before leaning on 60920's figures: the frost range explains how to read the range around Campus's dates instead of trusting one, while local microclimates explains what one yard in Campus can differ from the 60920 normal.