Huntley, IL 60142 Frost Dates
60142, near Huntley, IL: the frost window
Around 04/25 is the usual last spring frost, about 240 days away. Fall's first freeze usually shows up around 10/22, roughly 179 days after the last spring frost.
Huntley sits in USDA Zone 5b (-15 to -10°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
Huntley's growing season runs out in roughly 8 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
04/25 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 05/09 and only about 1 year in 10 sees frost after that.
Huntley against the rest of the dataset
Huntley's growing season runs about 179 days, ranking 25,182 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 990 of 1,548.
Learn more
Two guides worth reading on 60142: zone vs. frost date, on why Zone 5b and Huntley's frost date answer different questions, and the frost range, on how to read the range around Huntley's dates instead of trusting one.