Irving, IL 62051 Frost Dates
Frost dates for Irving, IL, ZIP 62051
Around 04/12 is the usual last spring frost, about 227 days away. The first fall frost typically arrives around 10/20, about 190 frost-free days later.
Irving sits in USDA Zone 6b (-5 to 0°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 6b around Irving 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.
Why 04/12 isn't a guarantee
04/12 is the middle of 30 years of NOAA records, not a promise. Plant by 03/29 and you're betting against frost in roughly 9 years out of 10. 04/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Irving compares
About 190 days separate Irving's last and first frost, putting it 21,296 of 40,283 ZIP codes nationally. Within IL, it ranks 536 of 1,548.
Learn more
local microclimates explains what one yard in Irving can differ from the 62051 normal, and zone vs. frost date explains why Zone 6b and Irving's frost date answer different questions.