Crescent City, IL 60939 Frost Dates
Crescent City, IL: when does the frost end?
The last spring frost here typically falls around 04/24, about 239 days from today. Fall's first freeze usually shows up around 10/16, roughly 174 days after the last spring frost.
Crescent City sits in USDA Zone 6a (-10 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 7 weeks until Crescent City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/24 isn't a guarantee
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
At roughly 174 frost-free days, Crescent City places 27,593 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,266 of 1,548.
Learn more
Before leaning on 60939's figures: zone vs. frost date explains why Zone 6a and Crescent City's frost date answer different questions, while the frost range explains how to read the range around Crescent City's dates instead of trusting one.