Pollen Count in White Plains, NY

White Plains, situated in Westchester County within the humid continental climate of the lower Hudson Valley, experiences a pronounced, multi-season allergy cycle driven by its dense deciduous forests, suburban lawns, and proximity to wetland areas.

Tree pollen kicks off the year, typically emerging in late March and peaking from mid-April through May, with oak, maple, birch, hickory, ash, and cedar being the dominant offenders across the region's wooded neighborhoods and parklands.

As tree season winds down, grass pollen takes over from late May through July, with Timothy, Kentucky bluegrass, orchard grass, and ryegrass producing the heaviest loads, especially during warm, breezy afternoons.

Weed pollen becomes the primary concern from mid-August through the first frost in October, with ragweed leading the way alongside pigweed, lamb's quarters, and plantain thriving in disturbed roadsides and open fields. The overlap between late grass and early ragweed in August often intensifies symptoms for multi-sensitive individuals.

Beyond pollen, White Plains sees significant year-round mold activity fueled by humid summers and damp, leaf-littered autumns, while winter brings increased indoor dust mite exposure, and regional traffic corridors contribute to airborne particulate pollution.

Overall, White Plains presents a classic Northeastern allergy profile: long, layered pollen seasons compounded by persistent mold and humidity.