NE pollen report
Bellevue Pollen Report
PollyMap is actively seeking a qualified local collection partner in Bellevue. This guide uses regional climate and historical allergen data while we recruit a local host.
Collection coming soon to Bellevue
PollyMap is actively recruiting a verified local partner in Bellevue. Be the first to know — or apply to be the partner.
Pollen patterns in Bellevue
In Bellevue, tree pollen — including Elm, Cedar, Oak — typically dominates from late winter through spring. Bluegrass grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Top trees
- Elm
- Cedar
- Oak
- Cottonwood
- Maple
Top grasses
- Bluegrass
- Brome
- Bermuda
Top weeds
- Ragweed
- Pigweed
- Russian thistle
- Lamb's quarters
Top molds
- Alternaria
- Cladosporium
- Aspergillus
- Stachybotrys
Bellevue pollen calendar
Typical monthly intensity across the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tree | ||||||||||||
| grass | ||||||||||||
| weed | ||||||||||||
| mold |
Historical reports
Cities near Bellevue
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
When is allergy season in Bellevue?
In Bellevue, allergy season starts with tree pollen in late winter and early spring, transitions to grass pollen in May and June, and ends with weed pollen — primarily ragweed and sagebrush — from August through October.
What pollen is highest in Bellevue?
The most prevalent local pollens in Bellevue include Elm, Cedar, Oak in the spring season.
What months are worst for allergies in Bellevue?
Most Bellevue allergy sufferers report the worst symptoms during peak tree pollen in March-May and again during ragweed season in September.
Does Bellevue have mold allergies?
Yes. Bellevue's climate supports Alternaria and Cladosporium spore exposure, with counts typically peaking in the warm and humid months.
Why are allergies bad in Bellevue?
Local geography, climate, and seasonal plant cycles all influence allergen load in Bellevue. The combination of regional vegetation and weather creates predictable spring and fall pollen peaks.
Is there a local pollen collection site in Bellevue?
Not yet. PollyMap is actively seeking a qualified local allergy clinic or environmental health partner in Bellevue to host weekly pollen collection.
How can my clinic become a PollyMap partner in Bellevue?
Clinics in Bellevue can apply to become the official PollyMap collection partner. Approved partners receive PollyKits weekly, conduct 24-48 hour collections, and mail samples back for microscope analysis.
Bring real pollen data to Bellevue.
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