Campton Hills, IL 60175 Frost Dates
60175, near Campton Hills, IL: the frost window
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/13, roughly 163 days after the last spring frost.
Zone 5b (-15 to -10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Campton Hills, not a forecast for this year.
Stretching the season past the first frost
Campton Hills's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.
Campton Hills against the rest of the dataset
Campton Hills's growing season runs about 163 days, ranking 31,356 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,522 of 1,548.
Learn more
Two guides worth reading on 60175: the frost range, on how to read the range around Campton Hills's dates instead of trusting one, and local microclimates, on what one yard in Campton Hills can differ from the 60175 normal.