Dana, IL 61321 Frost Dates
Frost dates for Dana, IL, ZIP 61321
Typically, the last spring freeze lands around 04/26, roughly 241 days out. The first fall frost typically arrives around 10/17, about 173 frost-free days later.
Dana 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 Dana 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.
How much risk comes with planting early here
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dana compares
At roughly 173 frost-free days, Dana places 28,097 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,327 of 1,548.
Learn more
the frost range explains how to read the range around Dana's dates instead of trusting one, and local microclimates explains what one yard in Dana can differ from the 61321 normal.