Oconee, IL 62553 Frost Dates
Oconee, 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 10/20, roughly 190 days after the last spring frost.
Zone 6b (-5 to 0°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 Oconee, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Oconee'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 04/27 and only about 1 year in 10 sees frost after that.
Oconee against the rest of the dataset
At roughly 190 frost-free days, Oconee places 21,335 of 40,283 ZIP codes in this dataset. Within IL, it ranks 554 of 1,548.
Learn more
Before leaning on 62553's figures: local microclimates explains what one yard in Oconee can differ from the 62553 normal, while zone vs. frost date explains why Zone 6b and Oconee's frost date answer different questions.