FrostDateCheck

Loami, IL 62661 Frost Dates

When can you plant in Loami, IL?

Zone 6a

Around 04/07 is the usual last spring frost, about 222 days away. The first fall frost typically arrives around 10/29, about 205 frost-free days later.

The USDA Plant Hardiness Zone Map puts Loami in Zone 6a (-10 to -5°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

About 9 weeks of growing season left in Loami before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Loami's last frost

04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/22 and you're betting against frost in roughly 9 years out of 10. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Loami compares

At roughly 205 frost-free days, Loami places 16,376 of 40,283 ZIP codes in this dataset. Within IL, it ranks 115 of 1,548.

Learn more

local microclimates covers what one yard in Loami can differ from the 62661 normal. zone vs. frost date covers why Zone 6a and Loami's frost date answer different questions.