Lansing, MI 48933 Frost Dates
Lansing, MI: when does the frost end?
Around 05/01 is the usual last spring frost, about 246 days away. 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
With roughly 7 weeks until Lansing's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/01 isn't a guarantee
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 31,571 of 40,283 ZIP codes in this dataset. Within MI, it ranks 534 of 1,153.
Learn more
Before leaning on 48933's figures: local microclimates explains what one yard in Lansing can differ from the 48933 normal, while zone vs. frost date explains why Zone 6a and Lansing's frost date answer different questions.