Hickory Hills, IL 60457 Frost Dates
Hickory Hills, IL: when does the frost end?
Around 04/19 is the usual last spring frost, about 234 days away. Fall's first freeze usually shows up around 10/22, roughly 183 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hickory Hills in Zone 6a (-10 to -5°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 8 weeks until Hickory Hills's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Hickory Hills's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Hickory Hills against the rest of the dataset
About 183 days separate Hickory Hills's last and first frost, putting it 23,800 of 40,283 ZIP codes nationally. Within IL, it ranks 880 of 1,548.
Learn more
Before leaning on 60457's figures: local microclimates explains what one yard in Hickory Hills can differ from the 60457 normal, while zone vs. frost date explains why Zone 6a and Hickory Hills's frost date answer different questions.