Damiansville, IL 62266 Frost Dates
Frost dates for Damiansville, IL, ZIP 62266
Typically, the last spring freeze lands around 04/12, roughly 227 days out. The first fall frost typically arrives around 10/20, about 189 frost-free days later.
Damiansville 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 Damiansville 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 03/28 and you're betting against frost in roughly 9 years out of 10. 04/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Damiansville compares
About 189 days separate Damiansville's last and first frost, putting it 21,700 of 40,283 ZIP codes nationally. Within IL, it ranks 628 of 1,548.
Learn more
local microclimates explains what one yard in Damiansville can differ from the 62266 normal, and zone vs. frost date explains why Zone 6b and Damiansville's frost date answer different questions.