Roselle, IL 60172 Frost Dates
60172, near Roselle, IL: the frost window
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/13, roughly 163 days after the last spring frost.
Roselle sits in USDA Zone 5b (-15 to -10°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
Roselle'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
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.
Roselle against the rest of the dataset
Roselle's growing season runs about 163 days, ranking 31,327 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,520 of 1,548.
Learn more
Two guides worth reading on 60172: local microclimates, on what one yard in Roselle can differ from the 60172 normal, and zone vs. frost date, on why Zone 5b and Roselle's frost date answer different questions.