Elizabeth, NJ Pollen Levels Today

Elizabeth, NJ sits in a humid, temperate coastal corridor where allergy season is long, overlapping, and intensified by dense urban air quality and proximity to both the Atlantic and the New Jersey Meadowlands.

Tree pollen kicks off the year, typically from mid-March through May, with oak, maple, birch, cedar, sycamore, and London plane — a street tree heavily planted throughout Union County — producing the highest counts, often peaking in late April. As trees taper, grass pollen takes over from May into July, driven primarily by timothy, Kentucky bluegrass, orchard grass, and ryegrass found in local parks, medians, and nearby marshlands.

The late spring–early summer overlap between lingering tree pollen and emerging grass pollen is often the most symptomatic stretch of the year.

Weed season follows from mid-August through the first hard frost in October or November, dominated by ragweed, along with pigweed, lamb's quarters, and mugwort common along roadways and industrial lots.

Non-pollen triggers are significant here: high summer humidity fuels outdoor and indoor mold (especially Alternaria and Cladosporium), while dust mites, diesel particulates from I-95 and Port Newark, and ozone worsen symptoms year-round.

Overall, Elizabeth's allergy profile is defined by prolonged, overlapping pollen seasons amplified by humidity and urban pollution.