Allergy sufferers in Western Washington are already contending with the early arrival of spring symptoms, including runny noses, itchy eyes, and sneezing. According to longtime Pacific Northwest meteorologist expert Ted Buehner, the warming temperatures signal that trees and plants are awakening from winter dormancy.

The Shifting Seasons and Early Pollen Onset

It is accurate to note that allergy season appears to be starting earlier than in previous decades. Global studies indicate that the summer season has extended by over three weeks since the 1950s, causing a corresponding shortening of fall, winter, and spring.

Western Washington has recently experienced warmer trends, exemplified by temperatures nearing 90 degrees in May 2023. This early warmth contributes to the accelerated release of airborne allergens.

Current Tree Pollen Offenders

As the season begins, tree pollen is the primary culprit. The University of Washington cherry trees are currently in full bloom, presenting a beautiful sight that is challenging for allergy sufferers.

Currently, hazelnut and birch trees are the most significant contributors to local pollen counts. Cedar and juniper pollen production is also beginning to increase. Following these, Cottonwood, Poplar, Alder, Willow, and Maple trees will soon add to the airborne load.

Later in April and into May, Sycamore, Ash, and Oak trees will begin releasing their respective pollens. As daylight hours increase and temperatures remain warm, grasses and weeds will eventually take over from tree pollen as the main allergen source heading into summer.

Regional Allergy Rankings and Natural Relief

Western Washington benefits from a significant natural advantage in managing seasonal allergies: frequent rainfall. Rain effectively washes pollen from the air, providing substantial, albeit temporary, relief to those affected.

Data reviewing 100 U.S. cities ranked several Washington locations for allergy severity. Spokane landed at ninth nationally, while the Portland/Vancouver area was ranked 38th. The Seattle metro area saw its ranking climb significantly, moving from 88th to 45th in just two years.

Boise, Idaho, holds the top spot nationally for allergy severity, followed closely by San Diego, California, at number two. Most of the top 20 most challenging cities are situated between the central plains and the eastern seaboard.

Tips for Managing High Pollen Days

Local sources, such as the UW Medicine Allergy and Asthma Center, post daily pollen counts, identifying the most common allergens present. Relief is often found on windy or rainy days when airborne pollen is naturally reduced.

Dr. Jan Agosti, an infectious disease specialist with UW Medicine, suggests practical measures when pollen counts are high. She recommends wearing face masks, noting that even simple cloth masks offer some filtration benefit over none. Additionally, sunglasses and eyeglasses are helpful tools for keeping pollen away from the eyes and nose.