Hammond, IL 61929 Frost Dates
When can you plant in Hammond, IL?
The last spring frost here typically falls around 04/16, about 231 days from today. The first fall frost typically arrives around 10/22, about 187 frost-free days later.
The USDA Plant Hardiness Zone Map puts Hammond in Zone 6a (-10 to -5°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 8 weeks of growing season left in Hammond before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/16 isn't a guarantee
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hammond compares
At roughly 187 frost-free days, Hammond places 22,556 of 40,283 ZIP codes in this dataset. Within IL, it ranks 790 of 1,548.
Learn more
the frost range covers how to read the range around Hammond's dates instead of trusting one. local microclimates covers what one yard in Hammond can differ from the 61929 normal.