Kingston Mines, IL 61539 Frost Dates
Kingston Mines, IL: when does the frost end?
Around 04/16 is the usual last spring frost, about 231 days away. Fall's first freeze usually shows up around 10/23, roughly 189 days after the last spring frost.
Kingston Mines sits in USDA Zone 6a (-10 to -5°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 8 weeks until Kingston Mines's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Kingston Mines'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.
Kingston Mines against the rest of the dataset
About 189 days separate Kingston Mines's last and first frost, putting it 21,733 of 40,283 ZIP codes nationally. Within IL, it ranks 645 of 1,548.
Learn more
Before leaning on 61539's figures: zone vs. frost date explains why Zone 6a and Kingston Mines's frost date answer different questions, while the frost range explains how to read the range around Kingston Mines's dates instead of trusting one.