Red Bud, IL 62278 Frost Dates
Red Bud, IL: when does the frost end?
Around 04/12 is the usual last spring frost, about 227 days away. Fall's first freeze usually shows up around 10/22, roughly 191 days after the last spring frost.
Zone 7a (0 to 5°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 Red Bud, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Red Bud'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
04/12 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.
Red Bud against the rest of the dataset
At roughly 191 frost-free days, Red Bud places 20,767 of 40,283 ZIP codes in this dataset. Within IL, it ranks 446 of 1,548.
Learn more
Before leaning on 62278's figures: the frost range explains how to read the range around Red Bud's dates instead of trusting one, while local microclimates explains what one yard in Red Bud can differ from the 62278 normal.