Coopersville, MI 49404 Frost Dates
Frost dates for Coopersville, MI, ZIP 49404
The last spring frost here typically falls around 05/14, about 259 days from today. The first fall frost typically arrives around 09/29, about 135 frost-free days later.
The USDA Plant Hardiness Zone Map puts Coopersville in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6a around Coopersville has about 5 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Coopersville's last frost
05/14 is the middle of 30 years of NOAA records, not a promise. Plant by 04/29 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Coopersville compares
At roughly 135 frost-free days, Coopersville places 37,852 of 40,283 ZIP codes in this dataset. Within MI, it ranks 966 of 1,153.
Learn more
zone vs. frost date explains why Zone 6a and Coopersville's frost date answer different questions, and the frost range explains how to read the range around Coopersville's dates instead of trusting one.