Pearl City, IL 61062 Frost Dates
When can you plant in Pearl City, IL?
Around 04/26 is the usual last spring frost, about 241 days away. The first fall frost typically arrives around 10/13, about 169 frost-free days later.
The USDA Plant Hardiness Zone Map puts Pearl City in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 7 weeks of growing season left in Pearl City 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 04/11 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 Pearl City compares
About 169 days separate Pearl City's last and first frost, putting it 29,535 of 40,283 ZIP codes nationally. Within IL, it ranks 1,433 of 1,548.
Learn more
local microclimates covers what one yard in Pearl City can differ from the 61062 normal. zone vs. frost date covers why Zone 5a and Pearl City's frost date answer different questions.