Grant, MI 49327 Frost Dates
Grant, MI: when does the frost end?
The last spring frost here typically falls around 05/14, about 259 days from today. Fall's first freeze usually shows up around 09/29, roughly 135 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Grant 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 5 weeks until Grant's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/14 isn't a guarantee
05/14 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 05/31 and only about 1 year in 10 sees frost after that.
Grant against the rest of the dataset
At roughly 135 frost-free days, Grant places 37,893 of 40,283 ZIP codes in this dataset. Within MI, it ranks 979 of 1,153.
Learn more
Before leaning on 49327's figures: local microclimates explains what one yard in Grant can differ from the 49327 normal, while zone vs. frost date explains why Zone 6a and Grant's frost date answer different questions.