Liberty, IL 62347 Frost Dates
Frost dates for Liberty, IL, ZIP 62347
The last spring frost here typically falls around 04/14, about 229 days from today. The first fall frost typically arrives around 10/23, about 191 frost-free days later.
Liberty 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 Liberty 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.
How much risk comes with planting early here
04/14 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 and you're betting against frost in roughly 9 years out of 10. 05/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Liberty compares
At roughly 191 frost-free days, Liberty places 20,891 of 40,283 ZIP codes in this dataset. Within IL, it ranks 463 of 1,548.
Learn more
zone vs. frost date explains why Zone 6a and Liberty's frost date answer different questions, and the frost range explains how to read the range around Liberty's dates instead of trusting one.