FrostDateCheck

Lansing, IL 60438 Frost Dates

When can you plant in Lansing, IL?

Zone 6a

Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/20, about 179 frost-free days later.

Lansing sits in USDA Zone 6a (-10 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 Lansing before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Lansing's last frost

04/23 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. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Lansing compares

Lansing's growing season runs about 179 days, ranking 25,183 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 991 of 1,548.

Learn more

the frost range covers how to read the range around Lansing's dates instead of trusting one. local microclimates covers what one yard in Lansing can differ from the 60438 normal.