MT pollen report

Billings Pollen Report

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

Population 117,116Elevation 3,127 ft

Collection coming soon to Billings

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

Pollen patterns in Billings

In Billings, tree pollen — including Juniper, Cedar, Cottonwood — typically dominates from late winter through spring. Brome grass is the most common warm-season pollinator, and Sagebrush drives the largest fall pollen load.

Top trees

  • Juniper
  • Cedar
  • Cottonwood
  • Pine
  • Aspen

Top grasses

  • Brome
  • Bluegrass
  • Fescue

Top weeds

  • Sagebrush
  • Ragweed
  • Russian thistle

Top molds

  • Cladosporium
  • Alternaria

Billings pollen calendar

Typical monthly intensity across the year.

JanFebMarAprMayJunJulAugSepOctNovDec
tree
grass
weed
mold

Historical reports

No historical reports yet.

Cities near Billings

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

Frequently asked questions

When is allergy season in Billings?

In Billings, 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 Billings?

The most prevalent local pollens in Billings include Juniper, Cedar, Cottonwood in the spring season.

What months are worst for allergies in Billings?

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

Does Billings have mold allergies?

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

Why are allergies bad in Billings?

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

Is there a local pollen collection site in Billings?

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

How can my clinic become a PollyMap partner in Billings?

Clinics in Billings 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 Billings.

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