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Cleveland · OH
When does flea season start in Cleveland?
Flea season in Cleveland typically runs mid-April to early November, peaking May–Sep.
Ticks in Cleveland
Local tick activity typically runs mid-March to early December, heaviest May–Oct. The species to know in Ohio: blacklegged (deer) tick, American dog tick, lone star tick.
More on species and timing: Ohio tick season.
Numbers come from NOAA U.S. Climate Normals (1991–2020) recorded at CLEVELAND BURKE AP — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Cleveland?
Around mid-April 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 Cleveland different from the rest of Ohio?
Not meaningfully — Cleveland tracks the Ohio statewide estimate closely. Both are climate-based estimates, so treat the edges as fuzzy, not exact.
Do dogs in Cleveland 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 Ohio are typically active early March to early December, a longer window than fleas get.