Galesburg, MI 49053 Frost Dates
49053, near Galesburg, MI: the frost window
Around 04/29 is the usual last spring frost, about 244 days away. Fall's first freeze usually shows up around 10/20, roughly 173 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 Galesburg, not a forecast for this year.
Stretching the season past the first frost
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 Galesburg's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/18 and only about 1 year in 10 sees frost after that.
Galesburg against the rest of the dataset
About 173 days separate Galesburg's last and first frost, putting it 27,934 of 40,283 ZIP codes nationally. Within MI, it ranks 226 of 1,153.
Learn more
Two guides worth reading on 49053: zone vs. frost date, on why Zone 6a and Galesburg's frost date answer different questions, and the frost range, on how to read the range around Galesburg's dates instead of trusting one.