Newark, NJ Pollen Levels Today

Newark, NJ sits within the humid continental climate of the Mid-Atlantic, where a long growing season, dense urban vegetation, and proximity to both the Atlantic coast and the New Jersey Meadowlands create a prolonged and varied allergy calendar.

Tree pollen launches the season in early spring, typically from March through May, with oak, birch, maple, cedar, sycamore, and London plane—a street tree planted extensively throughout the city—serving as the dominant triggers. As tree counts taper, grass pollen takes over from mid-May through July, driven largely by timothy, Kentucky bluegrass, orchard grass, and perennial ryegrass common to Essex County lawns and parks.

Late summer and fall bring weed pollen, peaking from August through October, with ragweed as the chief offender alongside mugwort, lamb's quarters, and pigweed. Overlap between late-season grasses and early ragweed in August can noticeably intensify symptoms.

Beyond pollen, Newark residents contend with significant non-pollen allergens: elevated mold spores tied to humid summers and nearby wetlands, urban dust, cockroach allergens in older housing stock, and traffic-related air pollution from the I-95 corridor and Port Newark that can worsen respiratory reactions.

Overall, Newark's allergy profile is defined by a long, overlapping pollen season compounded by persistent urban air-quality pressures.