Genoa, IL 60135 Frost Dates
Frost dates for Genoa, IL, ZIP 60135
Typically, the last spring freeze lands around 04/28, roughly 243 days out. The first fall frost typically arrives around 10/12, about 166 frost-free days later.
Zone 5b (-15 to -10°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 Genoa, not a forecast for this year.
What to do before the first frost
Zone 5b around Genoa has about 6 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 Genoa's last frost
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Genoa compares
Genoa's growing season runs about 166 days, ranking 30,360 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,479 of 1,548.
Learn more
the frost range explains how to read the range around Genoa's dates instead of trusting one, and local microclimates explains what one yard in Genoa can differ from the 60135 normal.