Allergies & Pollen Count for San Francisco, California
3.5Low-Medium
Top Allergens:
Grass, Chenopods, Cedar/Juniper
Discussion
Concentration of pollen grains in the air for Wednesday will be increasing but will still remain in the low range. This is likely to be caused in part by rising temperatures, strong winds and lower relative humidity.
Allergy Facts
Hayfever generally begins when a person is between 5 to 10 years old and reaches its peak incidence between the ages 15 to 25 years of age.