If you’re noticing mosquitoes in North Dallas well before summer officially begins, you’re not alone and you’re not imagining it. Thanks to North Texas’s unique weather patterns, mosquito season often kicks off far earlier than most homeowners expect.
In neighborhoods from Plano to Carrollton, mosquito activity can begin as early as late February or March, making early spring a key time to start thinking about mosquito prevention.
Mosquitoes in North Dallas don’t need much to get started just a few warm days and access to water. Unlike colder climates where deep freezes kill off mosquito eggs and larvae, North Dallas winters are often mild enough that dormant eggs survive. When spring temperatures creep into the 70s and early rainstorms roll through, the stage is set.
Within 48 hours of standing water collecting in a yard birdbaths, clogged gutters, or toys left out mosquito eggs can begin hatching. And with rapid development cycles in warm weather, adults can be flying within a week.
In addition to weather, suburban yard design plays a role. Irrigated lawns, shaded patios, and decorative landscaping all help retain moisture—creating ideal conditions for early mosquito breeding. Even if you’re not seeing standing water, damp mulch beds and puddling in low lawn spots can still support larvae in March or April.
Daytime highs in the 70s or above as early as late February.
Frequent spring rainstorms followed by calm, humid days.
Mosquito sightings near shaded patios or water features before April.
Bites during early evening walks—even before summer sets in.
Once mosquitoes get a foothold early in the season, their population can grow exponentially by late spring. That’s why many North Dallas homeowners begin professional treatments in early March—to reduce hatch rates before they escalate.
Recurring treatments help manage mosquito activity through peak months while supporting year-round efforts to control breeding grounds.
