Shawneetown, IL 62984 Frost Dates
62984, near Shawneetown, IL: the frost window
Typically, the last spring freeze lands around 04/05, roughly 220 days out. Fall's first freeze usually shows up around 10/31, roughly 209 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Shawneetown in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Shawneetown's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Shawneetown's last frost
04/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Shawneetown against the rest of the dataset
At roughly 209 frost-free days, Shawneetown places 15,326 of 40,283 ZIP codes in this dataset. Within IL, it ranks 47 of 1,548.
Learn more
Two guides worth reading on 62984: local microclimates, on what one yard in Shawneetown can differ from the 62984 normal, and zone vs. frost date, on why Zone 7a and Shawneetown's frost date answer different questions.