Low Pollen in Fullerton, CA

About pollen in Fullerton

Grass pollen is the main driver in Fullerton today, sitting in the Low range while the overall index also reads Low. Tree pollen has dropped to Very Low, with the local mix of Washingtonia and Syagrus palms, Cupaniopsis, Melaleuca, and Maple contributing little at this point in the season. The forecast holds grass steady at Low across the next five days, so don't expect much change in the near term. This tracks with the calendar, as grass tends to be the dominant late-spring and early-summer source after the spring tree peak has passed. No weed data is available right now, though ragweed typically becomes a factor later in summer and into fall.

What to do today

• It's a good day for outdoor activities since pollen levels are low.
• Do you know which plants cause your pollen allergy? Check out the pollen data to be prepared.

Tree map

Every dot is a tree near Fullerton, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

Top tree-pollen sources

The local tree genera behind today's pollen near Fullerton. Each bar is that genus's share of the tree pollen.

Meet the trees near you

Get to know the tree types growing around Fullerton: what each looks like, how allergenic it is, and when it blooms.

Canary island pine

Pinus canariensis

Allergenicity 1/4Blooms spring

London plane

Platanus acerifolia

Allergenicity 4/4Blooms spring

Holly oak

Quercus ilex

Allergenicity 4/4Blooms spring

Maidenhair tree

Ginkgo biloba

Allergenicity 1/4Blooms spring

Chinese elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

Honey locust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring

Leaf plum purple

Prunus cerasifera

Allergenicity 1/4Blooms spring

Alamo mexican sycamore

Platanus mexicana

Allergenicity 4/4Blooms spring

Tulip tree

Liriodendron tulipifera

Allergenicity 1/4Blooms spring

Hollywood juniper

Juniperus chinensis

Allergenicity 5/4Blooms winter,spring

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

Japanese black pine

Pinus thunbergiana

Allergenicity 1/4Blooms spring

Evergreen pear

Pyrus kawakamii

Allergenicity 1/4Blooms spring

Acer paxii

Acer paxii

Allergenicity 3/4Blooms spring

Ginkgo autumn gold

Ginkgo biloba

Allergenicity 1/4Blooms spring

White poplar

Populus alba

Allergenicity 3/4Blooms spring

Common questions

What is the pollen count in Fullerton, CA today?

Fullerton, CA is at a low 2 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. The five-day outlook holds steady around 2 of 5.

Is grass pollen high in Fullerton, CA right now?

Grass pollen is low today at 2 of 5, and it's past its peak season. Most people won't have symptoms.

What plants are causing allergies in Fullerton, CA?

The main sources right now are Geijera, Ficus, Jacaranda, Pistacia, and Lagerstroemia.