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WI pollen report

Green Bay Pollen Report

PollyMap is actively seeking a qualified local collection partner in Green Bay. This guide uses regional climate and historical allergen data while we recruit a local host.

Population 107,395Elevation 580 ft

Collection coming soon to Green Bay

PollyMap is actively recruiting a verified local partner in Green Bay. Be the first to know — or apply to be the partner.

While we find a local clinic

Test the air at your own home in Green Bay

No allergy clinic is reporting from Green Bay yet. Until one does, you can order your own PollyKit — a simple air sampler you hang outdoors or indoors. Send it back and the PollyKit Lab shows you exactly what's floating in your air.

  • Pollen from local trees, grasses and weeds
  • Airborne mold spores
  • Dust mites and other indoor allergens
Order your PollyKit

Hang it outdoors

See which pollen and mold are in your yard this season.

Or hang it indoors

Check bedrooms and living spaces for mold, dust mites and more.

Pollen patterns in Green Bay

In Green Bay, tree pollen — including Maple, Oak, Birch — 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

  • Maple
  • Oak
  • Birch
  • Ash
  • Walnut

Top grasses

  • Bluegrass
  • Timothy
  • Orchard
  • Rye

Top weeds

  • Ragweed
  • Lamb's quarters
  • Pigweed
  • Plantain

Top molds

  • Alternaria
  • Cladosporium
  • Aspergillus
  • Penicillium

Green Bay pollen calendar

Typical monthly intensity across the year.

JanFebMarAprMayJunJulAugSepOctNovDec
tree
grass
weed
mold

Historical reports

No historical reports yet.

Cities near Green Bay

Explore pollen activity in nearby cities reported by the PollyMap network.

Frequently asked questions

When is allergy season in Green Bay?

In Green Bay, 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 Green Bay?

The most prevalent local pollens in Green Bay include Maple, Oak, Birch in the spring season.

What months are worst for allergies in Green Bay?

Most Green Bay allergy sufferers report the worst symptoms during peak tree pollen in March-May and again during ragweed season in September.

Does Green Bay have mold allergies?

Yes. Green Bay's climate supports Alternaria and Cladosporium spore exposure, with counts typically peaking in the warm and humid months.

Why are allergies bad in Green Bay?

Local geography, climate, and seasonal plant cycles all influence allergen load in Green Bay. The combination of regional vegetation and weather creates predictable spring and fall pollen peaks.

Is there a local pollen collection site in Green Bay?

Not yet. PollyMap is actively seeking a qualified local allergy clinic or environmental health partner in Green Bay to host weekly pollen collection.

How can my clinic become a PollyMap partner in Green Bay?

Clinics in Green Bay 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.

Territory open in Green Bay

Are you an allergy clinic in Green Bay? Claim your territory on PollyMap.

PollyMap is a local authority-building tool for allergy clinics, ENT practices, and any clinic that offers allergy care. By becoming the Official PollyMap Partner for your part of Green Bay, your clinic gets credited on real pollen reports, receives ready-to-share weekly content, and becomes the go-to local expert patients trust.

We assign each partner a designated territory within the Green Bay metro — like a franchise territory. Green Bay has room for multiple partners, but once your area is assigned, it's locked to your clinic.

No clinic has claimed a territory in Green Bay yet. The best areas go to the first clinics that sign up — once one does, that part of town is off the table for everyone else.

  • Your clinic credited on every Green Bay pollen report
  • Weekly real-sample reports and ready-to-share content under your brand
  • Locked territory — competing clinics can't claim your area
  • Become the go-to allergy expert in your part of Green Bay

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Report findings are based on reviewed sample data and are not influenced by sponsors.