Phoenix Allergy Guide
Phoenix has one of the longest, most intense allergy seasons in the country. Mulberry, olive, and Bermuda grass dominate.
Local Conditions
Phoenix, AZ
Allergy
High
Asthma
Moderate
Mold
Moderate
Dominant Pollens
MulberryOliveBermuda GrassRagweed
Dominant Molds
AlternariaCladosporium
Mulberry and olive lead a heavy spring season. Summer ozone and Bermuda grass keep pressure high.
See Live Conditions on PollyMap →Most common allergens
MulberryOliveBermuda GrassRagweed
Most common molds
AlternariaCladosporium
Seasonal patterns
Spring is peak (Feb–May). Bermuda grass extends into summer; ragweed picks up in fall.
Asthma considerations
High ozone in summer plus dust events make Phoenix challenging for asthma — monitor AQI daily.
FAQ
When is allergy season in Phoenix?+
Spring (Feb–May) is peak, with secondary surges during monsoon and fall.
Where can I get allergy testing in Phoenix?+
Carefree Allergy serves patients across the greater Phoenix area.