Urbana, IL 61824 Frost Dates
Urbana, IL: when does the frost end?
The last spring frost here typically falls around 04/15, about 230 days from today. Fall's first freeze usually shows up around 10/24, roughly 190 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Urbana, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Urbana'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
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Urbana against the rest of the dataset
About 190 days separate Urbana's last and first frost, putting it 21,030 of 40,283 ZIP codes nationally. Within IL, it ranks 497 of 1,548.
Learn more
Before leaning on 61824's figures: the frost range explains how to read the range around Urbana's dates instead of trusting one, while local microclimates explains what one yard in Urbana can differ from the 61824 normal.