FrostDateCheck

Stoy, IL 62464 Frost Dates

When can you plant in Stoy, IL?

Zone 6b

Around 04/12 is the usual last spring frost, about 227 days away. The first fall frost typically arrives around 10/22, about 193 frost-free days later.

Stoy sits in USDA Zone 6b (-5 to 0°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 Stoy before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

04/12 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 and you're betting against frost in roughly 9 years out of 10. 04/26 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Stoy compares

At roughly 193 frost-free days, Stoy places 20,089 of 40,283 ZIP codes in this dataset. Within IL, it ranks 414 of 1,548.

Learn more

zone vs. frost date covers why Zone 6b and Stoy's frost date answer different questions. the frost range covers how to read the range around Stoy's dates instead of trusting one.