FleaDates › Flea season › Kentucky › Lexington
Lexington · KY
When does flea season start in Lexington?
Flea season in Lexington typically runs late March to mid-November, peaking May–Sep.
Ticks in Lexington
Local tick activity typically runs mid-February to mid-December, heaviest Apr–Oct. The species to know in Kentucky: lone star tick, American dog tick, blacklegged (deer) tick.
More on species and timing: Kentucky tick season.
Numbers come from NOAA U.S. Climate Normals (1991–2020) recorded at LEXINGTON BLUEGRASS AP — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Lexington?
Around late 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 Lexington different from the rest of Kentucky?
Not meaningfully — Lexington tracks the Kentucky statewide estimate closely. Both are climate-based estimates, so treat the edges as fuzzy, not exact.
Do dogs in Lexington 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 Kentucky are typically active early February to mid-December, a longer window than fleas get.