Crescent City, IL 60928 Frost Dates
60928, near Crescent City, IL: the frost window
Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/16, roughly 174 days after the last spring frost.
Zone 5b (-15 to -10°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 Crescent City, not a forecast for this year.
Stretching the season past the first frost
Crescent City's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
Crescent City against the rest of the dataset
About 174 days separate Crescent City's last and first frost, putting it 27,592 of 40,283 ZIP codes nationally. Within IL, it ranks 1,265 of 1,548.
Learn more
Two guides worth reading on 60928: zone vs. frost date, on why Zone 5b and Crescent City's frost date answer different questions, and the frost range, on how to read the range around Crescent City's dates instead of trusting one.