FleaDates › Flea season › Ohio › Columbus
Columbus · OH
When does flea season start in Columbus?
Flea season in Columbus typically runs early April to early November, peaking May–Sep.
Ticks in Columbus
Local tick activity typically runs early March to early December, heaviest Apr–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 COLUMBUS OHIO STATE UNIV AP — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Columbus?
Around early 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 Columbus different from the rest of Ohio?
Not meaningfully — Columbus tracks the Ohio statewide estimate closely. Both are climate-based estimates, so treat the edges as fuzzy, not exact.
Do dogs in Columbus 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.