FleaDates › Flea season › Washington › Yakima
Yakima · WA
When does flea season start in Yakima?
Flea season in Yakima typically runs early April to late October, peaking May–Sep.
Ticks in Yakima
Local tick activity typically runs late February to mid-November, heaviest May–Sep. The species to know in Washington: western blacklegged tick, Rocky Mountain wood tick, American dog tick.
More on species and timing: Washington tick season.
Numbers come from NOAA U.S. Climate Normals (1991–2020) recorded at YAKIMA AIR TERMINAL — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Yakima?
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 Yakima different from the rest of Washington?
Not meaningfully — Yakima tracks the Washington statewide estimate closely. Both are climate-based estimates, so treat the edges as fuzzy, not exact.
Do dogs in Yakima 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 Washington are typically active mid-February to late November, a longer window than fleas get.