De Land, IL 61839 Frost Dates
De Land, IL: when does the frost end?
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/13, roughly 170 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts De Land in Zone 6a (-10 to -5°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 7 weeks until De Land'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
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.
De Land against the rest of the dataset
De Land's growing season runs about 170 days, ranking 29,199 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,408 of 1,548.
Learn more
Before leaning on 61839's figures: zone vs. frost date explains why Zone 6a and De Land's frost date answer different questions, while the frost range explains how to read the range around De Land's dates instead of trusting one.