Low Pollen in Pasadena, CA

About pollen in Pasadena

Pollen levels around Pasadena are running low today, with both tree and weed sources holding steady at the lower end of the scale. Most people should be able to move through their day without much irritation, though those who are especially sensitive may notice a mild effect from weed pollen in particular. Overall, it is a fairly easy day for allergy sufferers. Looking ahead, weed pollen is expected to remain low and consistent over the next several days, suggesting no significant changes on that front. Tree pollen, contributed locally by species like plane, oak, Washingtonia, cinnamomum, and pepper trees, is also holding at a low level for now. This lines up with the seasonal pattern, since late summer typically brings a lull in tree pollen well after the spring peak, while weed pollen is the more likely source of any late-season allergy symptoms as we move toward 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 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. The five-day outlook holds steady around 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.