Stewardson, IL 62463 Frost Dates
When can you plant in Stewardson, IL?
Typically, the last spring freeze lands around 04/16, roughly 231 days out. The first fall frost typically arrives around 10/22, about 187 frost-free days later.
Stewardson 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
About 8 weeks of growing season left in Stewardson before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Stewardson compares
At roughly 187 frost-free days, Stewardson places 22,518 of 40,283 ZIP codes in this dataset. Within IL, it ranks 776 of 1,548.
Learn more
the frost range covers how to read the range around Stewardson's dates instead of trusting one. local microclimates covers what one yard in Stewardson can differ from the 62463 normal.