The mostly frigid and dry conditions seen over the winter may produce less pollen from trees this spring. But experts disagree on the 2025 outlook.

PHOENIX — As the temperature warms up across the state, the Valley is also entering peak allergy season. “This season so far ...

And while blossoming trees and blooming daffodils usher in this week’s transition to spring, that ever-present coating of pollen also signals the start of yet another allergy season. In the ...

No pollen grains were measured for weeds because that normally spikes in the fall. The main trees right now are pine, juniper, cedar cypress, and oak, with 114 pollen grains per cubic meter (grains/m ...

On Tuesday, the Oregon Allergy Associates reported high levels of tree pollen in the air. The dominant pollen was Alder, but tests also picked up Birch, Cedar, Cottonwood, and Hornbeam.

While ragweed is the biggest allergen problem in the spring, and sometimes the fall, other local allergens include trees such as ... who has been counting pollen in Arizona for five plus years ...

While ragweed is the biggest allergen problem in the spring, and sometimes the fall, other local allergens include trees such as ash ... who has been counting pollen in Arizona for five plus years," ...