Mill Shoals, IL 62809 Frost Dates
Mill Shoals, 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 10/19, roughly 183 days after the last spring frost.
Mill Shoals sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 7 weeks until Mill Shoals's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Mill Shoals's last frost
04/15 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 05/02 and only about 1 year in 10 sees frost after that.
Mill Shoals against the rest of the dataset
At roughly 183 frost-free days, Mill Shoals places 24,032 of 40,283 ZIP codes in this dataset. Within IL, it ranks 891 of 1,548.
Learn more
Before leaning on 62809's figures: zone vs. frost date explains why Zone 6b and Mill Shoals's frost date answer different questions, while the frost range explains how to read the range around Mill Shoals's dates instead of trusting one.