New York pollen and allergy seasons

August outlookHigh

New York has a spring tree season, grass in early summer, and a heavy ragweed season in the fall.

Twelve month pollen calendar

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F
M
A
M
J
J
A
S
O
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LowModerateHighVery high
Dominant species in August
Ragweed
Typical peak in August
mid-August to late-August
Worst month of the year
September
Best month of the year
January

What is active in August

Ragweed
High
Mugwort
Moderate
Grass
Low

Cities in New York

No tracked cities yet for New York.

Today and worst today come from live readings where available. Typical shows the usual level for this month from the seasonal profile.

Pollen is only half of what's in the air. See today's air quality in New York for ozone, dust, and smoke readings by city.

The New York allergy season

Allergy levels in New York peak in September, when ragweed pollen runs highest. The season moves through tree pollen around April, grass in June, weed pollen such as ragweed in September. Levels start to climb around March. The lowest pollen levels of the year arrive in January.

Common questions

When does allergy season start in New York?

Pollen levels in New York usually begin climbing in March and reach their highest point in September.

What is the worst month for allergies in New York?

September is typically the worst month in New York, driven by ragweed pollen.

When does ragweed season end in New York?

Ragweed pollen in New York usually fades by the end of October, after the first hard frost in colder areas.

When is the best time for allergies in New York?

January usually brings the lowest pollen levels of the year in New York.