Peoria Heights, IL 61616 Frost Dates
Frost dates for Peoria Heights, IL, ZIP 61616
The last spring frost here typically falls around 04/16, about 231 days from today. The first fall frost typically arrives around 10/23, about 189 frost-free days later.
Peoria Heights 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
Zone 6a around Peoria Heights has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Peoria Heights's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Peoria Heights compares
About 189 days separate Peoria Heights's last and first frost, putting it 21,535 of 40,283 ZIP codes nationally. Within IL, it ranks 587 of 1,548.
Learn more
zone vs. frost date explains why Zone 6a and Peoria Heights's frost date answer different questions, and the frost range explains how to read the range around Peoria Heights's dates instead of trusting one.