Coopersville, MI 49403 Frost Dates
Coopersville, 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.
Coopersville sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 5 weeks until Coopersville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
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.
Coopersville against the rest of the dataset
About 135 days separate Coopersville's last and first frost, putting it 37,851 of 40,283 ZIP codes nationally. Within MI, it ranks 965 of 1,153.
Learn more
Before leaning on 49403's figures: zone vs. frost date explains why Zone 6a and Coopersville's frost date answer different questions, while the frost range explains how to read the range around Coopersville's dates instead of trusting one.