FleaDates › Flea season › New Mexico › Roswell
Roswell · NM
When does flea season start in Roswell?
Flea season in Roswell typically runs mid-February to late November, peaking Apr–Oct. That's about 3 weeks earlier than the New Mexico statewide estimate — city warmth and lower elevation add up.
Ticks in Roswell
Local tick activity typically runs year-round, heaviest Mar–Oct. The species to know in New Mexico: Rocky Mountain wood tick, brown dog tick, American dog tick.
More on species and timing: New Mexico tick season.
Numbers come from NOAA U.S. Climate Normals (1991–2020) recorded at ROSWELL IND AIR PK — a climate-based estimate; real years wobble.
Frequently asked questions
When does flea season start in Roswell?
Around mid-February 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 Roswell different from the rest of New Mexico?
Somewhat. That's about 3 weeks earlier than the New Mexico statewide estimate — city warmth and lower elevation add up. The statewide page averages several stations across New Mexico; this page uses the normals recorded at ROSWELL IND AIR PK.
Do dogs in Roswell 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 New Mexico are typically active late January to mid-December, a longer window than fleas get.