West Brooklyn, IL 61378 Frost Dates
When can you plant in West Brooklyn, IL?
The last spring frost here typically falls around 04/27, about 242 days from today. The first fall frost typically arrives around 10/12, about 167 frost-free days later.
The USDA Plant Hardiness Zone Map puts West Brooklyn in Zone 5b (-15 to -10°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 6 weeks of growing season left in West Brooklyn 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
04/27 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 West Brooklyn compares
At roughly 167 frost-free days, West Brooklyn places 30,228 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,463 of 1,548.
Learn more
zone vs. frost date covers why Zone 5b and West Brooklyn's frost date answer different questions. the frost range covers how to read the range around West Brooklyn's dates instead of trusting one.