Lansing, MI 48922 Frost Dates
48922, near Lansing, MI: the frost window
The last spring frost here typically falls around 05/01, about 246 days from today. Fall's first freeze usually shows up around 10/13, roughly 162 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Lansing in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Lansing's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/18 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.
Lansing against the rest of the dataset
At roughly 162 frost-free days, Lansing places 31,568 of 40,283 ZIP codes in this dataset. Within MI, it ranks 531 of 1,153.
Learn more
Two guides worth reading on 48922: local microclimates, on what one yard in Lansing can differ from the 48922 normal, and zone vs. frost date, on why Zone 6a and Lansing's frost date answer different questions.