Sadorus, IL 61872 Frost Dates
Frost dates for Sadorus, IL, ZIP 61872
The last spring frost here typically falls around 04/23, about 238 days from today. The first fall frost typically arrives around 10/13, about 170 frost-free days later.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Sadorus, not a forecast for this year.
What to do before the first frost
Zone 6a around Sadorus has about 7 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 Sadorus'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. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sadorus compares
At roughly 170 frost-free days, Sadorus places 29,203 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,409 of 1,548.
Learn more
the frost range explains how to read the range around Sadorus's dates instead of trusting one, and local microclimates explains what one yard in Sadorus can differ from the 61872 normal.