FrostDateCheck

La Moille, IL 61330 Frost Dates

When can you plant in La Moille, IL?

Zone 5b

Typically, the last spring freeze lands around 04/22, roughly 237 days out. The first fall frost typically arrives around 10/17, about 177 frost-free days later.

The USDA Plant Hardiness Zone Map puts La Moille in Zone 5b (-15 to -10°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 7 weeks of growing season left in La Moille 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

04/22 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.

How La Moille compares

La Moille's growing season runs about 177 days, ranking 26,210 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,136 of 1,548.

Learn more

local microclimates covers what one yard in La Moille can differ from the 61330 normal. zone vs. frost date covers why Zone 5b and La Moille's frost date answer different questions.