Michigan weather in January
The state broadly agrees with itself in January: afternoons run 28° in Traverse City and 27° in Mackinac Island, with everywhere else in between.
Based on 2 weather stations. Two stations in the vacation north — Detroit and the state’s southern tier run warmer than what’s here, and the Upper Peninsula colder.
Northwest Lower Michigan
Highs near 28°, nights around 15°, and 32.3 in of snow in a typical January.
| Place | Highs / lows | Wet days | Snow | The short version |
|---|---|---|---|---|
| Traverse City | 28° / 15° | 18 | 32.3 in | Deep snow, short days, and ski trails groomed nightly. |
The Straits
Highs near 27°, nights around 9°, and 1.6 in of rain in a typical January.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Mackinac Island | 27° / 9° | 15 | Snowmobiles on the streets and no ferry to speak of. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.