Pollen in Centennial, CO

About pollen in Centennial

Pollen levels in Centennial are quiet today, with tree pollen registering essentially none. Anyone sensitive to airborne allergens should find little to react to outdoors right now, making this a comfortable stretch for spending time outside. Looking ahead, tree pollen is expected to remain minimal in the coming days, which fits the seasonal pattern — trees like ash, linden, pyrus, picea, and pine typically release most of their pollen in spring, and by midsummer their activity has largely wound down. If you're prone to seasonal allergies, this is a good window to enjoy the outdoors before late-summer weed pollen, such as ragweed, tends to pick up in the weeks ahead.

What to do today

• Pollen is minimal today, so it's a great time to be outside.
• No special pollen precautions are needed right now.

Tree map

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

Meet the trees near you

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

Green ash

Fraxinus pennsylvanica

Allergenicity 4/4Blooms spring

White ash

Fraxinus americana

Allergenicity 4/4Blooms spring

Austrian pine

Pinus nigra

Allergenicity 1/4Blooms spring

Littleleaf linden

Tilia cordata

Allergenicity 2/4Blooms summer

Ponderosa pine

Pinus ponderosa

Allergenicity 1/4Blooms spring

Honeylocust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring

Freeman maple

Acer freemanii

Allergenicity 3/4Blooms spring

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring

American linden

Tilia americana

Allergenicity 2/4Blooms summer

Honey locust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring

Linden

Tilia

Allergenicity 2/4Blooms summer

Silver maple

Acer saccharinum

Allergenicity 3/4Blooms spring

Flowering pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Scotch pine

Pinus sylvestris

Allergenicity 1/4Blooms spring

Northern red oak

Quercus rubra

Allergenicity 4/4Blooms spring

Northern hackberry

Celtis occidentalis

Allergenicity 3/4Blooms spring

Common questions

What is the pollen count in Centennial, CO today?

Centennial, CO has no notable tree, grass, or weed pollen today.

What plants are causing allergies in Centennial, CO?

The main sources right now are Ash, Linden, Pyrus, Picea, and Pine.