FleaDates › Flea season › Oregon › Medford
Medford · OR
When does flea season start in Medford?
Flea season in Medford typically runs late March to early November, peaking May–Sep.
Ticks in Medford
Local tick activity typically runs nearly year-round, with a brief midwinter lull, heaviest Apr–Oct. The species to know in Oregon: western blacklegged tick, American dog tick, Rocky Mountain wood tick.
More on species and timing: Oregon tick season.
Numbers come from NOAA U.S. Climate Normals (1991–2020) recorded at MEDFORD ROGUE VLY AP — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Medford?
Around late March 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 Medford different from the rest of Oregon?
Not meaningfully — Medford tracks the Oregon statewide estimate closely. Both are climate-based estimates, so treat the edges as fuzzy, not exact.
Do dogs in Medford 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 Oregon are typically active year-round, a longer window than fleas get.