Wolverine, MI 49705 Frost Dates
When can you plant in Wolverine, MI?
Typically, the last spring freeze lands around 06/07, roughly 283 days out. The first fall frost typically arrives around 09/14, about 95 frost-free days later.
Wolverine sits in USDA Zone 4b (-25 to -20°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 2 weeks of growing season left in Wolverine before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Wolverine's last frost
06/07 is the middle of 30 years of NOAA records, not a promise. Plant by 05/23 and you're betting against frost in roughly 9 years out of 10. 06/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Wolverine compares
Wolverine's growing season runs about 95 days, ranking 39,815 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 1,145 of 1,153.
Learn more
zone vs. frost date covers why Zone 4b and Wolverine's frost date answer different questions. the frost range covers how to read the range around Wolverine's dates instead of trusting one.