Dieterich, IL 62424 Frost Dates
When can you plant in Dieterich, IL?
Around 04/13 is the usual last spring frost, about 228 days away. The first fall frost typically arrives around 10/22, about 190 frost-free days later.
Dieterich 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 Dieterich 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
04/13 is the middle of 30 years of NOAA records, not a promise. Plant by 04/01 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dieterich compares
About 190 days separate Dieterich's last and first frost, putting it 21,240 of 40,283 ZIP codes nationally. Within IL, it ranks 524 of 1,548.
Learn more
zone vs. frost date covers why Zone 6b and Dieterich's frost date answer different questions. the frost range covers how to read the range around Dieterich's dates instead of trusting one.