Hopkins Park, IL 60958 Frost Dates
Frost dates for Hopkins Park, IL, ZIP 60958
The last spring frost here typically falls around 04/29, about 244 days from today. The first fall frost typically arrives around 10/16, about 171 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 Hopkins Park, not a forecast for this year.
What to do before the first frost
Zone 5b around Hopkins Park 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.
Why 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 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 Hopkins Park compares
At roughly 171 frost-free days, Hopkins Park places 28,770 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,380 of 1,548.
Learn more
zone vs. frost date explains why Zone 5b and Hopkins Park's frost date answer different questions, and the frost range explains how to read the range around Hopkins Park's dates instead of trusting one.