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