Dixon, IL 61091 Frost Dates
When can you plant in Dixon, IL?
Typically, the last spring freeze lands around 04/26, roughly 241 days out. The first fall frost typically arrives around 10/13, about 167 frost-free days later.
Dixon 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
About 7 weeks of growing season left in Dixon 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
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dixon compares
About 167 days separate Dixon's last and first frost, putting it 29,896 of 40,283 ZIP codes nationally. Within IL, it ranks 1,450 of 1,548.
Learn more
the frost range covers how to read the range around Dixon's dates instead of trusting one. local microclimates covers what one yard in Dixon can differ from the 61091 normal.