Caseyville, IL 62232 Frost Dates
Caseyville, IL: when does the frost end?
Typically, the last spring freeze lands around 04/08, roughly 223 days out. Fall's first freeze usually shows up around 10/26, roughly 200 days after the last spring frost.
Caseyville sits in USDA Zone 7a (0 to 5°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 Caseyville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Caseyville's last frost
04/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Caseyville against the rest of the dataset
About 200 days separate Caseyville's last and first frost, putting it 17,780 of 40,283 ZIP codes nationally. Within IL, it ranks 278 of 1,548.
Learn more
Before leaning on 62232's figures: local microclimates explains what one yard in Caseyville can differ from the 62232 normal, while zone vs. frost date explains why Zone 7a and Caseyville's frost date answer different questions.