San Jose, CA Pollen and Allergy Report for Summer 2023
Pollen Allergy Trends in San Jose, CA
When is pollen lowest in San Jose, CA?
February
Lowest month total PPM
Avg. PPM
When is pollen highest in San Jose, CA?
May
Highest month total PPM
Avg. PPM
How does pollen in San Jose, CA compare to California?
San Jose has a lower average PPM than the state of California.
San Jose yearly avg PPM:
California yearly avg PPM:
How does pollen in San Jose, CA compare to the USA?
San Jose has a lower average PPM than the USA.
San Jose yearly avg PPM:
USA yearly avg PPM:
Is pollen worse this year in San Jose, CA?
Spring 2023 was about the same as 2022.
Spring 2023 PPM:
Spring 2022 PPM:
Average PPM in San Jose, CA
San Jose, CA Pollen and Allergy Breakdown by Month
Grass
When is grass pollen highest in San Jose, CA?
May has the highest grass pollen in San Jose, CA with an average PPM of
When is grass pollen lowest in San Jose, CA?
December has the lowest grass pollen in San Jose, CA with an average PPM of
Tree
When is tree pollen highest in San Jose, CA?
April has the highest tree pollen in San Jose, CA with an average PPM of
When is tree pollen lowest in San Jose, CA?
August has the lowest tree pollen in San Jose, CA with an average PPM of
Weed
When is weed pollen highest in San Jose, CA?
November has the highest weed pollen in San Jose, CA with an average PPM of
When is weed pollen lowest in San Jose, CA?
February has the lowest weed pollen in San Jose, CA with an average PPM of
San Jose, CA Pollen Monthly Breakdown by Pollen Type
Pollen and Hay Fever in San Jose, CA
Living in the vibrant city of San Jose, California, we're surrounded by an abundant array of flora that makes our landscapes beautiful but can also lead to a common health concern - pollen allergies or hay fever.
In San Jose, pollen allergies can be triggered by various types of pollen produced by different plants during specific seasons. The seasons in which these allergies peak are primarily spring and fall.
Springtime in San Jose is often associated with blooming flowers and trees, which are the primary culprits for the onset of springtime allergies. Trees such as oaks, pines, and junipers release their pollen into the air, causing hay fever symptoms in many residents. It's not just the trees, though. Grass pollen, particularly from Bermuda grass and ryegrass, also plays a part in spring allergies.
As we move into the summer months, grass pollen levels tend to decrease, offering a brief respite for hay fever sufferers. However, that doesn't mean you're completely out of the woods, as certain weed pollens can still cause problems.
Fall, on the other hand, is infamous for its ragweed pollen. Ragweed is a common plant across California and it releases its pollen in late summer and fall. This can result in a flare-up of allergy symptoms for some individuals. Other fall allergens in San Jose include sagebrush and mugwort.
The changing seasons and the variety of plants in San Jose lead to different types of pollen being present in the air throughout the year. These contribute to the prevalence of hay fever in the city. Being aware of the types of pollen and their seasons can help residents anticipate and manage their allergies, ensuring they can continue to enjoy the beauty of San Jose throughout the year.