Campton Hills, IL 60507 Frost Dates
Frost dates for Campton Hills, IL, ZIP 60507
Around 04/28 is the usual last spring frost, about 243 days away. The first fall frost typically arrives around 10/13, about 166 frost-free days later.
Campton Hills sits in USDA Zone 5b (-15 to -10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 5b around Campton Hills 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 04/28 isn't a guarantee
04/28 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. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Campton Hills compares
About 166 days separate Campton Hills's last and first frost, putting it 30,315 of 40,283 ZIP codes nationally. Within IL, it ranks 1,472 of 1,548.
Learn more
local microclimates explains what one yard in Campton Hills can differ from the 60507 normal, and zone vs. frost date explains why Zone 5b and Campton Hills's frost date answer different questions.