Emden, IL 62635 Frost Dates
Frost dates for Emden, IL, ZIP 62635
Typically, the last spring freeze lands around 04/20, roughly 235 days out. The first fall frost typically arrives around 10/16, about 179 frost-free days later.
The USDA Plant Hardiness Zone Map puts Emden in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6a around Emden 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.
How much risk comes with planting early here
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 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 Emden compares
At roughly 179 frost-free days, Emden places 25,454 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,060 of 1,548.
Learn more
the frost range explains how to read the range around Emden's dates instead of trusting one, and local microclimates explains what one yard in Emden can differ from the 62635 normal.