Northlake, IL 60164 Frost Dates
Frost dates for Northlake, IL, ZIP 60164
Typically, the last spring freeze lands around 04/16, roughly 231 days out. The first fall frost typically arrives around 10/28, about 193 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 Northlake, not a forecast for this year.
What to do before the first frost
Zone 6a around Northlake has about 9 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.
Why 04/16 isn't a guarantee
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 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 Northlake compares
Northlake's growing season runs about 193 days, ranking 19,768 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 387 of 1,548.
Learn more
zone vs. frost date explains why Zone 6a and Northlake's frost date answer different questions, and the frost range explains how to read the range around Northlake's dates instead of trusting one.