Low Pollen in Pasadena, CA

About pollen in Pasadena

Pollen levels around Pasadena remain fairly quiet today. Tree pollen is running low, with contributions from familiar local species like plane, oak, and Washingtonia, while grass pollen sits at a very low level. Overall, most people should notice little to no irritation, though those with stronger sensitivities may still feel a mild effect on days with more outdoor activity. Looking ahead, conditions are expected to hold steady over the next several days, with grass pollen staying low and no significant shifts anticipated in the tree pollen picture. This lull fits the season, as the region's spring tree pollen surge from trees like Cinnamomum and Schinus has largely passed, and grass pollen typically eases by midsummer. With ragweed season still months away, this stretch of summer tends to bring some of the calmest pollen conditions of the year.

What to do today

• Pollen is low today and most people won't have symptoms.
• If you're sensitive, rinse off and change clothes after being outdoors.

Tree map

Every dot is a tree near Pasadena, 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 Pasadena. Each bar is that genus's share of the tree pollen.

Meet the trees near you

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

London plane

Platanus acerifolia

Allergenicity 4/4Blooms spring

Bradford pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Chinese evergreen elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

Oak species

Quercus

Allergenicity 4/4Blooms spring

Shamel ash

Fraxinus uhdei

Allergenicity 4/4Blooms spring

Italian cypress

Cupressus sempervirens

Allergenicity 4/4Blooms winter,spring

Chinese elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

Glossy privet

Ligustrum lucidum

Allergenicity 2/4Blooms spring

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

White mulberry

Morus alba

Allergenicity 5/4Blooms spring

Maidenhair tree

Ginkgo biloba

Allergenicity 1/4Blooms spring

Siberian elm

Ulmus pumila

Allergenicity 3/4Blooms spring

Aleppo pine

Pinus halepensis

Allergenicity 1/4Blooms spring

Arizona ash

Fraxinus velutina

Allergenicity 4/4Blooms spring

Japanese black pine

Pinus thunbergiana

Allergenicity 1/4Blooms spring

Monterey pine

Pinus radiata

Allergenicity 1/4Blooms spring

Common questions

What is the pollen count in Pasadena, CA today?

Pasadena, CA is at a low 2 out of 5 on the Universal Pollen Index today, driven mainly by tree pollen. Over the next five days it ranges from 1 to 2 of 5.

Is tree pollen high in Pasadena, CA right now?

Tree pollen is low today at 2 of 5. Most people won't have symptoms.

What plants are causing allergies in Pasadena, CA?

The main sources right now are Plane, Oak, Washingtonia, Cinnamomum, and Schinus.