FleaDates › Flea season › Washington › Spokane
Spokane · WA
When does flea season start in Spokane?
Flea season in Spokane typically runs mid-April to mid-October, peaking Jun–Sep.
Ticks in Spokane
Local tick activity typically runs early March 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 SPOKANE INTL AP — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Spokane?
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 Spokane different from the rest of Washington?
Not meaningfully — Spokane tracks the Washington statewide estimate closely. Both are climate-based estimates, so treat the edges as fuzzy, not exact.
Do dogs in Spokane 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.