Claremont, IL 62421 Frost Dates
Claremont, IL: when does the frost end?
Typically, the last spring freeze lands around 04/15, roughly 230 days out. Fall's first freeze usually shows up around 10/23, roughly 189 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 Claremont, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Claremont's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
Claremont against the rest of the dataset
At roughly 189 frost-free days, Claremont places 21,756 of 40,283 ZIP codes in this dataset. Within IL, it ranks 653 of 1,548.
Learn more
Before leaning on 62421's figures: local microclimates explains what one yard in Claremont can differ from the 62421 normal, while zone vs. frost date explains why Zone 6b and Claremont's frost date answer different questions.