FrostDateCheck

Peoria, IL 61614 Frost Dates

Peoria, IL: when does the frost end?

Zone 6a

The last spring frost here typically falls around 04/16, about 231 days from today. Fall's first freeze usually shows up around 10/23, roughly 189 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Peoria in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

Stretching the season past the first frost

With roughly 8 weeks until Peoria's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around Peoria's last frost

04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/04 and only about 1 year in 10 sees frost after that.

Peoria against the rest of the dataset

At roughly 189 frost-free days, Peoria places 21,386 of 40,283 ZIP codes in this dataset. Within IL, it ranks 563 of 1,548.

Learn more

Before leaning on 61614's figures: the frost range explains how to read the range around Peoria's dates instead of trusting one, while local microclimates explains what one yard in Peoria can differ from the 61614 normal.