FleaDates › Flea season › Texas › Houston
Houston · TX
When does flea season start in Houston?
Houston doesn't get a real flea off-season — every month stays warm enough for fleas to keep breeding, heaviest Feb–Nov.
Ticks in Houston
Local tick activity typically runs year-round, heaviest all year. The species to know in Texas: lone star tick, Gulf Coast tick, brown dog tick, American dog tick.
More on species and timing: Texas tick season.
Numbers come from NOAA U.S. Climate Normals (1991–2020) recorded at HOUSTON HOBBY AP — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Houston?
It never fully stops — Houston's monthly averages support flea activity essentially all year, with the heaviest stretch Feb–Nov.
Is flea season in Houston different from the rest of Texas?
Not meaningfully — Houston tracks the Texas statewide estimate closely. Both are climate-based estimates, so treat the edges as fuzzy, not exact.
Do dogs in Houston 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 Texas are typically active year-round, a longer window than fleas get.