Hidalgo, IL 62432 Frost Dates
Frost dates for Hidalgo, IL, ZIP 62432
Around 04/13 is the usual last spring frost, about 228 days away. The first fall frost typically arrives around 10/22, about 190 frost-free days later.
Zone 6b (-5 to 0°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 Hidalgo, not a forecast for this year.
What to do before the first frost
Zone 6b around Hidalgo has about 8 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 Hidalgo's last frost
04/13 is the middle of 30 years of NOAA records, not a promise. Plant by 04/01 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hidalgo compares
At roughly 190 frost-free days, Hidalgo places 21,339 of 40,283 ZIP codes in this dataset. Within IL, it ranks 556 of 1,548.
Learn more
local microclimates explains what one yard in Hidalgo can differ from the 62432 normal, and zone vs. frost date explains why Zone 6b and Hidalgo's frost date answer different questions.