FrostDateCheck

Carrier Mills, IL 62917 Frost Dates

When can you plant in Carrier Mills, IL?

Zone 7a

The last spring frost here typically falls around 04/14, about 229 days from today. The first fall frost typically arrives around 10/21, about 189 frost-free days later.

Carrier Mills sits in USDA Zone 7a (0 to 5°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

About 8 weeks of growing season left in Carrier Mills before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Carrier Mills's last frost

04/14 is the middle of 30 years of NOAA records, not a promise. Plant by 03/28 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Carrier Mills compares

At roughly 189 frost-free days, Carrier Mills places 21,619 of 40,283 ZIP codes in this dataset. Within IL, it ranks 612 of 1,548.

Learn more

zone vs. frost date covers why Zone 7a and Carrier Mills's frost date answer different questions. the frost range covers how to read the range around Carrier Mills's dates instead of trusting one.