Lake in the Hills, IL 60156 Frost Dates
Lake in the Hills, IL: when does the frost end?
The last spring frost here typically falls around 04/25, about 240 days from today. Fall's first freeze usually shows up around 10/22, roughly 179 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 Lake in the Hills, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Lake in the Hills'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
04/25 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.
Lake in the Hills against the rest of the dataset
About 179 days separate Lake in the Hills's last and first frost, putting it 25,181 of 40,283 ZIP codes nationally. Within IL, it ranks 989 of 1,548.
Learn more
Before leaning on 60156's figures: the frost range explains how to read the range around Lake in the Hills's dates instead of trusting one, while local microclimates explains what one yard in Lake in the Hills can differ from the 60156 normal.