Woodridge, IL 60517 Frost Dates
When can you plant in Woodridge, IL?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/17, about 173 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 Woodridge, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Woodridge before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Woodridge's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Woodridge compares
At roughly 173 frost-free days, Woodridge places 27,782 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,302 of 1,548.
Learn more
zone vs. frost date covers why Zone 6a and Woodridge's frost date answer different questions. the frost range covers how to read the range around Woodridge's dates instead of trusting one.