FrostDateCheck

Roodhouse, IL 62082 Frost Dates

62082, near Roodhouse, IL: the frost window

Zone 6a

The last spring frost here typically falls around 04/13, about 228 days from today. Fall's first freeze usually shows up around 10/22, roughly 190 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Roodhouse 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

Roodhouse's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

The actual range around Roodhouse's last frost

04/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/28 and only about 1 year in 10 sees frost after that.

Roodhouse against the rest of the dataset

About 190 days separate Roodhouse's last and first frost, putting it 21,214 of 40,283 ZIP codes nationally. Within IL, it ranks 517 of 1,548.

Learn more

Two guides worth reading on 62082: zone vs. frost date, on why Zone 6a and Roodhouse's frost date answer different questions, and the frost range, on how to read the range around Roodhouse's dates instead of trusting one.