Marquette County Climate

Lake Superior is the largest fresh water lake in the world and arguably the most beautiful and the most deadly. Lake Superior greatly influences the weather in Marquette county, moderating temperatures in the summer (and believe it or not, the winter too!) and bringing as much as 200 inches of lake effect snow to the County. The Upper Peninsula's record seasonal snowfall is 392 inches!

Summers are warm and dry and very pleasant. The July maximum and minimum averages range from 76 to 54. Winter temperatures are modified by Lake Superior with the January aveages ranging from 21 to 3. Average precipitation is 35 inches with 110 inches of snowfall averaging closer to Lake Superior, and averaging close to 170 inches over the highlands in the western end.

Marquette County Temperatures

Average warmest month is July.
Highest recorded temperature was 104 in 1977.
Average coolest month is January.
Lowest recorded temperature was -24 in 1996.

Marquette County Precipitation in Inches

 For current weather conditions, watches, warnings, and up-to-the-minute forecasts, visit the NWS website.

Source: NWS Weather Forecast Office in Negaunee, Michigan