Marine, IL 62061 Frost Dates
When can you plant in Marine, IL?
Around 04/12 is the usual last spring frost, about 227 days away. The first fall frost typically arrives around 10/20, about 189 frost-free days later.
Marine 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 Marine before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Marine's last frost
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 Marine compares
At roughly 189 frost-free days, Marine places 21,656 of 40,283 ZIP codes in this dataset. Within IL, it ranks 622 of 1,548.
Learn more
the frost range covers how to read the range around Marine's dates instead of trusting one. local microclimates covers what one yard in Marine can differ from the 62061 normal.