Peck, MI 48466 Frost Dates
Peck, MI: when does the frost end?
Around 05/12 is the usual last spring frost, about 257 days away. Fall's first freeze usually shows up around 10/05, roughly 147 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 Peck, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Peck's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/12 isn't a guarantee
05/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Peck against the rest of the dataset
At roughly 147 frost-free days, Peck places 35,952 of 40,283 ZIP codes in this dataset. Within MI, it ranks 867 of 1,153.
Learn more
Before leaning on 48466's figures: local microclimates explains what one yard in Peck can differ from the 48466 normal, while zone vs. frost date explains why Zone 6a and Peck's frost date answer different questions.