Capron, IL 61012 Frost Dates
Frost dates for Capron, IL, ZIP 61012
The last spring frost here typically falls around 04/28, about 243 days from today. The first fall frost typically arrives around 10/12, about 166 frost-free days later.
The USDA Plant Hardiness Zone Map puts Capron in Zone 5b (-15 to -10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 5b around Capron has about 6 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 Capron's last frost
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 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 Capron compares
About 166 days separate Capron's last and first frost, putting it 30,395 of 40,283 ZIP codes nationally. Within IL, it ranks 1,482 of 1,548.
Learn more
local microclimates explains what one yard in Capron can differ from the 61012 normal, and zone vs. frost date explains why Zone 5b and Capron's frost date answer different questions.