Flagstaff, Arizona Pollen Report
As a certified local pollen collection site for PollyMap, we report on actual pollen found at our clinic location — not predicted data. Get real, weekly local pollen levels for Flagstaff and northern Arizona so you can plan your day with confidence.
Carefree Allergy is a Certified Local Pollen Collection Site for PollyMap.
We collect real local data weekly and report on actual pollen found at our clinic location. We do not rely on predicted pollen data.
Watch Our Weekly Pollen Reports
We post video pollen readings every week on Facebook and Instagram so you always know what's in the air.
Latest Pollen Report
Actual local pollen sample collected by Carefree Allergy for Flagstaff.
Historical Trend
See how pollen levels have changed over time in Flagstaff.
Understanding Pollen Levels
Tips for High Pollen Days
- •Keep windows closed and use air conditioning
- •Avoid outdoor activities during peak pollen times (early morning)
- •Shower and change clothes after being outside
- •Use a HEPA air filter in your bedroom
- •Consider starting allergy medications before symptoms worsen
Flagstaff Allergy Calendar
In Flagstaff, Arizona, pollen seasons overlap and shift throughout the year, catching many allergy sufferers off guard. The calendar below shows when trees, grasses, and weeds are most active across the Flagstaff area and greater Arizona.
Spring (Mar–May)
Trees launch the pollen season with full force at elevation: ponderosa pines, oaks, junipers, and cottonwoods are among the biggest culprits in the Flagstaff area. Flagstaff's higher altitude means the season starts slightly later than in the Valley but can be just as intense.
Summer (Jun–Aug)
Flagstaff's cooler mountain climate offers some relief from the intense grass pollen seen in lower elevations, but timothy grass and other mountain grasses peak during the warmer months. Ragweed and dock weed also become a concern.
Fall (Sep–Nov)
Grasses and weeds remain active well into the season. Ragweed and dock weed continue through the dry autumn months, and sagebrush—prevalent throughout the Flagstaff region—peaks in fall.
Winter (Dec–Feb)
Harsh mountain winters push most plants into dormancy longer than in the Valley, but junipers can start releasing pollen in late winter as temperatures climb. Elms and ashes also tend to wake up ahead of schedule.
Tired of Checking Pollen Counts Every Day?
Get tested to find out exactly what you're allergic to. Then start treatment so pollen levels don't dictate your life.