Western Springs, IL 60558 Frost Dates
When can you plant in Western Springs, IL?
Around 04/19 is the usual last spring frost, about 234 days away. The first fall frost typically arrives around 10/22, about 183 frost-free days later.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Western Springs, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Western Springs before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Western Springs's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/06 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Western Springs compares
About 183 days separate Western Springs's last and first frost, putting it 23,803 of 40,283 ZIP codes nationally. Within IL, it ranks 881 of 1,548.
Learn more
local microclimates covers what one yard in Western Springs can differ from the 60558 normal. zone vs. frost date covers why Zone 6a and Western Springs's frost date answer different questions.