Hopedale, IL 61747 Frost Dates
Frost dates for Hopedale, IL, ZIP 61747
Around 04/21 is the usual last spring frost, about 236 days away. The first fall frost typically arrives around 10/17, about 178 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 Hopedale, not a forecast for this year.
What to do before the first frost
Zone 6a around Hopedale 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 Hopedale's last frost
04/21 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hopedale compares
Hopedale's growing season runs about 178 days, ranking 25,843 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,094 of 1,548.
Learn more
zone vs. frost date explains why Zone 6a and Hopedale's frost date answer different questions, and the frost range explains how to read the range around Hopedale's dates instead of trusting one.