Sigel, IL 62462 Frost Dates
Sigel, IL: when does the frost end?
The last spring frost here typically falls around 04/16, about 231 days from today. Fall's first freeze usually shows up around 10/22, roughly 187 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Sigel in Zone 6b (-5 to 0°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
With roughly 8 weeks until Sigel's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Sigel against the rest of the dataset
At roughly 187 frost-free days, Sigel places 22,590 of 40,283 ZIP codes in this dataset. Within IL, it ranks 797 of 1,548.
Learn more
Before leaning on 62462's figures: the frost range explains how to read the range around Sigel's dates instead of trusting one, while local microclimates explains what one yard in Sigel can differ from the 62462 normal.