Ellis Grove, IL 62259 Frost Dates
When can you plant in Ellis Grove, IL?
Typically, the last spring freeze lands around 04/12, roughly 227 days out. The first fall frost typically arrives around 10/22, about 191 frost-free days later.
Ellis Grove sits in USDA Zone 7a (0 to 5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 8 weeks of growing season left in Ellis Grove before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/12 isn't a guarantee
04/12 is the middle of 30 years of NOAA records, not a promise. Plant by 03/29 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ellis Grove compares
Ellis Grove's growing season runs about 191 days, ranking 20,910 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 470 of 1,548.
Learn more
local microclimates covers what one yard in Ellis Grove can differ from the 62259 normal. zone vs. frost date covers why Zone 7a and Ellis Grove's frost date answer different questions.