Clifton, IL 60927 Frost Dates
Frost dates for Clifton, IL, ZIP 60927
The last spring frost here typically falls around 04/24, about 239 days from today. The first fall frost typically arrives around 10/16, about 174 frost-free days later.
Clifton 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.
What to do before the first frost
Zone 5b around Clifton has about 7 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.
How much risk comes with planting early here
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Clifton compares
At roughly 174 frost-free days, Clifton places 27,541 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,253 of 1,548.
Learn more
zone vs. frost date explains why Zone 5b and Clifton's frost date answer different questions, and the frost range explains how to read the range around Clifton's dates instead of trusting one.