Glasford, IL 61533 Frost Dates
Glasford, IL: when does the frost end?
Typically, the last spring freeze lands around 04/16, roughly 231 days out. Fall's first freeze usually shows up around 10/23, roughly 189 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 Glasford, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Glasford's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Glasford's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/04 and only about 1 year in 10 sees frost after that.
Glasford against the rest of the dataset
About 189 days separate Glasford's last and first frost, putting it 21,657 of 40,283 ZIP codes nationally. Within IL, it ranks 623 of 1,548.
Learn more
Before leaning on 61533's figures: local microclimates explains what one yard in Glasford can differ from the 61533 normal, while zone vs. frost date explains why Zone 6a and Glasford's frost date answer different questions.