Junction, IL 62954 Frost Dates
62954, near Junction, IL: the frost window
Around 04/05 is the usual last spring frost, about 220 days away. Fall's first freeze usually shows up around 10/31, roughly 209 days after the last spring frost.
Junction sits in USDA Zone 7a (0 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
Junction's growing season runs out in roughly 9 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 Junction's last frost
04/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Junction against the rest of the dataset
Junction's growing season runs about 209 days, ranking 15,452 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 52 of 1,548.
Learn more
Two guides worth reading on 62954: local microclimates, on what one yard in Junction can differ from the 62954 normal, and zone vs. frost date, on why Zone 7a and Junction's frost date answer different questions.