Glencoe, IL 60022 Frost Dates
Frost dates for Glencoe, IL, ZIP 60022
Around 04/26 is the usual last spring frost, about 241 days away. The first fall frost typically arrives around 10/21, about 176 frost-free days later.
The USDA Plant Hardiness Zone Map puts Glencoe in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6a around Glencoe has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Glencoe's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Glencoe compares
At roughly 176 frost-free days, Glencoe places 26,412 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,166 of 1,548.
Learn more
local microclimates explains what one yard in Glencoe can differ from the 60022 normal, and zone vs. frost date explains why Zone 6a and Glencoe's frost date answer different questions.