East Galesburg, IL 61430 Frost Dates
61430, near East Galesburg, IL: the frost window
The last spring frost here typically falls around 04/21, about 236 days from today. Fall's first freeze usually shows up around 10/20, roughly 181 days after the last spring frost.
East Galesburg sits in USDA Zone 5b (-15 to -10°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
East Galesburg'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 East Galesburg's last frost
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
East Galesburg against the rest of the dataset
East Galesburg's growing season runs about 181 days, ranking 24,659 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 927 of 1,548.
Learn more
Two guides worth reading on 61430: local microclimates, on what one yard in East Galesburg can differ from the 61430 normal, and zone vs. frost date, on why Zone 5b and East Galesburg's frost date answer different questions.