FrostDateCheck

Cicero, IL 60624 Frost Dates

When can you plant in Cicero, IL?

Zone 6a

Around 04/10 is the usual last spring frost, about 225 days away. The first fall frost typically arrives around 11/05, about 208 frost-free days later.

Zone 6a (-10 to -5°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 Cicero, not a forecast for this year.

What to do before the first frost

About 10 weeks of growing season left in Cicero before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Cicero's last frost

04/10 is the middle of 30 years of NOAA records, not a promise. Plant by 03/29 and you're betting against frost in roughly 9 years out of 10. 04/25 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Cicero compares

About 208 days separate Cicero's last and first frost, putting it 15,511 of 40,283 ZIP codes nationally. Within IL, it ranks 72 of 1,548.

Learn more

the frost range covers how to read the range around Cicero's dates instead of trusting one. local microclimates covers what one yard in Cicero can differ from the 60624 normal.