Grand Prairie, TX Pollen Levels Today

Grand Prairie, TX, sits in the heart of North Texas within the Dallas–Fort Worth metroplex, where a humid subtropical climate, mild winters, and extended warm seasons create a nearly year-round allergy environment.

The allergy calendar kicks off unusually early, with the region's infamous mountain cedar (Ashe juniper) pollen surging from December through February. As winter fades, tree pollen intensifies from March into May, driven by oak, elm, ash, pecan, mulberry, and cottonwood—oak in particular blankets the area with heavy yellow pollen each spring.

Grass pollen takes over in late spring and persists through summer, with Bermuda, Johnson, Timothy, and Kentucky bluegrass being the dominant culprits across local lawns and open prairies.

By late August, weed pollen dominates the fall season, led by ragweed, pigweed, lamb's quarters, and sagebrush, typically peaking in September and tapering into November. Overlap between late-spring trees and early grasses, as well as lingering grasses meeting early fall weeds, can significantly intensify symptoms.

Non-pollen triggers are also substantial: high humidity fuels year-round outdoor and indoor mold, while dust, urban ozone, and vehicle pollution from nearby highways add to the load.

Overall, Grand Prairie's allergy profile is defined by early cedar, heavy spring tree pollen, and persistent mold.