City allergy guide
New York City allergy profile
Today's risk+
New York City combines dense development with a large urban forest, major parks, street trees, private yards, waterfronts, and regional pollen transport. Spring tree pollen from oak, maple, London plane, birch, and other trees is usually the most important early-season issue.
Grass pollen becomes more relevant around parks, athletic fields, and landscaped areas in late spring and early summer, while ragweed can travel widely during late summer and fall. Coastal wind can lower exposure in some waterfront periods or move pollen across boroughs depending on direction.
New York City's guide sections below focus on recurring local exposure patterns. Today's very low Elm reading is the live risk signal, while the seasonal and neighborhood notes explain where exposure can still differ during normal routines.
Seasonal guide+
December-February
Lowest outdoor pollen season
Outdoor pollen is generally low, but indoor dust, pets, mold, and building ventilation can still affect symptoms.
March-May
Spring tree pollen
Maple, oak, birch, London plane, and other urban trees often drive the main seasonal spike.
May-July
Grass pollen season
Parks, lawns, athletic fields, medians, and landscaped areas can raise grass exposure in warm, dry weather.
August-October
Ragweed and late-season weeds
Ragweed can travel through the region until frost, especially during warm, dry, breezy periods.
Treatment and planning tips+
Commutes
Use sunglasses on windy walks, keep car or rideshare windows closed, and consider rinsing your face after long outdoor waits.
Parks and runs
Plan longer park time for lower-risk windows when possible, especially during spring tree pollen and summer grass season.
Apartment air
Avoid window-open cooling during high pollen periods and use filtration if outdoor pollen triggers indoor symptoms.