Utah pollen and allergy seasons
Utah has a spring tree season along the Wasatch Front, grass in early summer, and a heavy ragweed and sagebrush season in late summer.
Twelve month pollen calendar
What is active in September
Cities in Utah
No tracked cities yet for Utah.
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 Utah for ozone, dust, and smoke readings by city.
The Utah allergy season
Allergy levels in Utah peak in September, when ragweed pollen runs highest. The season moves through tree pollen around March, 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 Utah?
Pollen levels in Utah usually begin climbing in March and reach their highest point in September.
What is the worst month for allergies in Utah?
September is typically the worst month in Utah, driven by ragweed pollen.
When does ragweed season end in Utah?
Ragweed pollen in Utah usually fades by the end of October, after the first hard frost in colder areas.
When is the best time for allergies in Utah?
January usually brings the lowest pollen levels of the year in Utah.