Canton, IL 61520 Frost Dates
When can you plant in Canton, IL?
The last spring frost here typically falls around 04/17, about 232 days from today. The first fall frost typically arrives around 10/19, about 185 frost-free days later.
Canton 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 7 weeks of growing season left in Canton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/17 isn't a guarantee
04/17 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. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Canton compares
About 185 days separate Canton's last and first frost, putting it 23,085 of 40,283 ZIP codes nationally. Within IL, it ranks 828 of 1,548.
Learn more
zone vs. frost date covers why Zone 6a and Canton's frost date answer different questions. the frost range covers how to read the range around Canton's dates instead of trusting one.