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