Kildeer, IL 60047 Frost Dates
Frost dates for Kildeer, IL, ZIP 60047
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/20, about 172 frost-free days later.
The USDA Plant Hardiness Zone Map puts Kildeer in Zone 5b (-15 to -10°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 5b around Kildeer 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.
Why 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kildeer compares
At roughly 172 frost-free days, Kildeer places 28,279 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,340 of 1,548.
Learn more
zone vs. frost date explains why Zone 5b and Kildeer's frost date answer different questions, and the frost range explains how to read the range around Kildeer's dates instead of trusting one.