IA pollen report

Des Moines Pollen Report

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

Population 214,133Elevation 955 ft

Collection coming soon to Des Moines

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

Pollen patterns in Des Moines

In Des Moines, 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

Des Moines pollen calendar

Typical monthly intensity across the year.

JanFebMarAprMayJunJulAugSepOctNovDec
tree
grass
weed
mold

Historical reports

No historical reports yet.

Cities near Des Moines

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

Frequently asked questions

When is allergy season in Des Moines?

In Des Moines, 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 Des Moines?

The most prevalent local pollens in Des Moines include Maple, Oak, Birch in the spring season.

What months are worst for allergies in Des Moines?

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

Does Des Moines have mold allergies?

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

Why are allergies bad in Des Moines?

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

Is there a local pollen collection site in Des Moines?

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

How can my clinic become a PollyMap partner in Des Moines?

Clinics in Des Moines 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 Des Moines.

Become the lead PollyMap collection partner in Des Moines and join our national network.

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