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AZ pollen report

Flagstaff Pollen Report

Flagstaff is an active PollyMap collection site. Carefree Allergy collects weekly pollen samples used to publish local reports.

Population 76,831Elevation 6,909 ft

Current report

Overall

High
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Rain, wind, colder temps, into the 40s-50s

TreesNone detected
GrassesModerate
WeedsHigh
MoldNone detected
Other particlesLow

Pollen patterns in Flagstaff

In Flagstaff, tree pollen — including Mulberry, Olive, Mesquite — typically dominates from late winter through spring. Bermuda grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.

Top trees

  • Mulberry
  • Olive
  • Mesquite
  • Juniper
  • Ash

Top grasses

  • Bermuda
  • Buffalo
  • Saltgrass

Top weeds

  • Ragweed
  • Russian thistle (tumbleweed)
  • Pigweed
  • Sagebrush

Top molds

  • Alternaria
  • Cladosporium
  • Aspergillus

Flagstaff pollen calendar

Typical monthly intensity across the year.

JanFebMarAprMayJunJulAugSepOctNovDec
tree
grass
weed
mold

Historical reports

Cities near Flagstaff

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

Frequently asked questions

When is allergy season in Flagstaff?

In Flagstaff, 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 Flagstaff?

The most prevalent local pollens in Flagstaff include Mulberry, Olive, Mesquite in the spring season.

What months are worst for allergies in Flagstaff?

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

Does Flagstaff have mold allergies?

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

Why are allergies bad in Flagstaff?

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

Is there a local pollen collection site in Flagstaff?

Yes. Flagstaff is an active PollyMap collection site hosted by Carefree Allergy.

How can my clinic become a PollyMap partner in Flagstaff?

Clinics in Flagstaff 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.

Partners active in Flagstaff — more territories open

Are you an allergy clinic in Flagstaff? 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 Flagstaff, 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 Flagstaff metro — like a franchise territory. Flagstaff has room for multiple partners, but once your area is assigned, it's locked to your clinic.

Flagstaff already has active PollyMap partners — and more territories are still available. The best areas go to the first clinics that sign up.

  • Your clinic credited on every Flagstaff 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 Flagstaff

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