AZ · Allergy Season Guide
Flagstaff Allergy Season Guide
Flagstaff is an active PollyMap collection site. Carefree Allergy collects weekly pollen samples used to publish local reports.
Local pollen data for Flagstaff is collected through the PollyMap network.
Collection Partner
Carefree Allergy
Summary
Flagstaff is an active PollyMap collection site. Local pollen, mold, and air quality data are collected weekly through Carefree Allergy. Tree pollen peaks in spring, grass pollen in late spring and early summer, and weed pollen in late summer and fall.
Local allergy guide for Flagstaff
Flagstaff shares Arizona's a hot, arid desert climate with long dry summers, mild winters, and very low annual rainfall. at 6,909 ft elevation.
Flagstaff at 6,909 ft elevation sits within Arizona's broader regional climate.
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.
Flagstaff's local mold profile includes Alternaria, Cladosporium, Aspergillus. Spore counts tend to peak after rainfall and during the warm, humid portion of the year.
Local weather — temperature, rainfall, wind, and humidity — drives day-to-day pollen levels. Dry, windy days following warm weather typically produce the highest counts, while heavy rain temporarily clears the air.
Flagstaff monthly allergy calendar
Typical month-by-month intensity for the four major airborne allergen categories in Flagstaff.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tree | Mod | High | V.High | V.High | High | Mod | Low | Mod | High | High | Mod | Low |
| Grass | — | Low | Mod | High | High | V.High | V.High | High | High | Mod | Low | — |
| Weed | Low | Low | Mod | Mod | High | High | High | V.High | V.High | High | Mod | Low |
| Mold | Low | Low | Mod | Mod | Mod | Mod | High | High | Mod | Mod | Low | Low |
Most common local pollens — weeds
Most common airborne molds
Current PollyMap data for Flagstaff
Recommended allergy clinic in Flagstaff
Carefree Allergy is the official PollyMap collection partner for Flagstaff. Visit carefreeallergy.com to learn more or book an appointment.
Frequently asked questions about allergies in Flagstaff
Test the air at your address
Curious what's actually in the air at your Flagstaff home or office?
The PollyKit is the easiest air-sampling kit on the market — collect outdoor pollen and airborne mold indoors at your home, office, classroom or rental, then mail it in for a full lab report. Just $39.99.
- Outdoor pollen counts
- Indoor airborne mold
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- Ships nationwide
What's in the box
- Air sampling rodsx2
- Indoor mold slidex1
- Prepaid lab returnincluded
- Personal results report3–5 days
The only consumer kit that pairs outdoor pollen with indoor airborne mold sampling.
Related guides
State Guide
Arizona Allergy Season Guide
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Phoenix Allergy Season Guide
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Tucson Allergy Season Guide
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Mesa Allergy Season Guide
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Chandler Allergy Season Guide
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Glendale Allergy Season Guide
Library
Pollen species library
Library
Mold species library
Reports
Latest PollyMap reports
Partners
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