Ellis Grove, IL 62241 Frost Dates
Ellis Grove, IL: when does the frost end?
The last spring frost here typically falls around 04/12, about 227 days from today. Fall's first freeze usually shows up around 10/22, roughly 191 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Ellis Grove in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Ellis Grove's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/12 isn't a guarantee
04/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Ellis Grove against the rest of the dataset
Ellis Grove's growing season runs about 191 days, ranking 20,909 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 469 of 1,548.
Learn more
Before leaning on 62241's figures: local microclimates explains what one yard in Ellis Grove can differ from the 62241 normal, while zone vs. frost date explains why Zone 7a and Ellis Grove's frost date answer different questions.