FleaDates › Flea season › Michigan › Marquette
Marquette · MI
When does flea season start in Marquette?
Flea season in Marquette typically runs early May to mid-October, peaking Jun–Sep. That's about 2 weeks later than the Michigan statewide estimate for this climate.
Ticks in Marquette
Local tick activity typically runs mid-April to early November, heaviest Jun–Sep. The species to know in Michigan: blacklegged (deer) tick, American dog tick, brown dog tick.
More on species and timing: Michigan tick season.
Numbers come from NOAA U.S. Climate Normals (1991–2020) recorded at MARQUETTE — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Marquette?
Around early May in a typical year, once local averages hold around 50°F. A warm spring pulls it earlier — prevention shouldn't wait for the calendar.
Is flea season in Marquette different from the rest of Michigan?
Somewhat. That's about 2 weeks later than the Michigan statewide estimate for this climate. The statewide page averages several stations across Michigan; this page uses the normals recorded at MARQUETTE.
Do dogs in Marquette need prevention outside flea season?
Yes — vets recommend year-round parasite prevention regardless of the local calendar. Indoor fleas ignore the weather entirely, and ticks in Michigan are typically active late March to mid-November, a longer window than fleas get.