Richmond, VA Pollen Levels Today

Richmond, Virginia sits in a humid subtropical zone at the fall line between the Piedmont and Coastal Plain, a geography that produces long, pollen-heavy seasons and consistently high allergen loads.

Tree pollen kicks off the year, typically emerging in late February and peaking from late March through April. Oak is the dominant offender, joined by river birch, red cedar and juniper, sweetgum, sycamore, hickory, maple, and pine, whose visible yellow dust coats the city each spring.

As trees taper in May, grass pollen takes over and remains elevated through July, driven largely by Bermuda, Kentucky bluegrass, orchard, timothy, and fescue. The overlap between late-season tree pollen and early grass in May often intensifies symptoms for multi-sensitive allergy sufferers.

Weed season builds in August and peaks in September, with ragweed as the primary culprit alongside lamb's quarters, pigweed, plantain, and nettle.

Richmond's humidity also fuels year-round mold exposure, particularly from Alternaria and Cladosporium spores that spike after summer storms and amid fall leaf litter. Dust mites thrive indoors in the damp climate, and regional ozone and vehicle emissions can compound respiratory irritation.

Overall, Richmond's allergy profile is defined by prolonged, overlapping pollen seasons layered over persistent humidity-driven mold.