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