Belle Rive, IL 62810 Frost Dates
Belle Rive, IL: when does the frost end?
Typically, the last spring freeze lands around 04/11, roughly 226 days out. Fall's first freeze usually shows up around 10/22, roughly 193 days after the last spring frost.
Belle Rive sits in USDA Zone 6b (-5 to 0°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.
Stretching the season past the first frost
With roughly 8 weeks until Belle Rive's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/11 isn't a guarantee
04/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/26 and only about 1 year in 10 sees frost after that.
Belle Rive against the rest of the dataset
Belle Rive's growing season runs about 193 days, ranking 20,069 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 411 of 1,548.
Learn more
Before leaning on 62810's figures: local microclimates explains what one yard in Belle Rive can differ from the 62810 normal, while zone vs. frost date explains why Zone 6b and Belle Rive's frost date answer different questions.