Coleman, MI 48618 Frost Dates
When can you plant in Coleman, MI?
Around 05/15 is the usual last spring frost, about 260 days away. The first fall frost typically arrives around 09/29, about 134 frost-free days later.
Coleman 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.
What to do before the first frost
About 5 weeks of growing season left in Coleman before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Coleman's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 06/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Coleman compares
Coleman's growing season runs about 134 days, ranking 37,985 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 987 of 1,153.
Learn more
the frost range covers how to read the range around Coleman's dates instead of trusting one. local microclimates covers what one yard in Coleman can differ from the 48618 normal.