Sandoval, IL 62882 Frost Dates
Sandoval, IL: when does the frost end?
Typically, the last spring freeze lands around 04/09, roughly 224 days out. Fall's first freeze usually shows up around 10/26, roughly 197 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Sandoval 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 Sandoval's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Sandoval's last frost
04/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Sandoval against the rest of the dataset
At roughly 197 frost-free days, Sandoval places 18,731 of 40,283 ZIP codes in this dataset. Within IL, it ranks 318 of 1,548.
Learn more
Before leaning on 62882's figures: zone vs. frost date explains why Zone 6b and Sandoval's frost date answer different questions, while the frost range explains how to read the range around Sandoval's dates instead of trusting one.