Fresno, CA Mulberry Pollen
Mulberry pollen in Fresno usually peaks around March and April, reaching High at its worst. Fresno sits in the heart of the San Joaquin Valley, whose bowl-like geography traps airborne pollen for weeks. Spring brings several heavy tree allergens together: olive, oak, and mulberry, followed by grass into summer.
Fruitless mulberry was a popular Fresno shade tree, and its male trees release large amounts of highly allergenic pollen in early spring.
Mulberry in Fresno today
Tuesday, July 28, 2026
Mulberry isn't picked up by the live pollen sensors near Fresno, so there's no daily number for it. Based on the season, July is typically None for Mulberry.
See Fresno's full pollen report and 5-day forecast →Mulberry pollen by month in Fresno
How mulberry usually runs across the year. The current month is outlined.
Managing mulberry season in Fresno
If mulberry is your trigger, start a daily antihistamine like cetirizine (Zyrtec) or loratadine (Claritin) a week or two before the March and April peak, rather than waiting for symptoms. Keep windows closed on high-count mornings, shower and change clothes after time outside, and run the AC on recirculate in the car.
When symptoms don't ease with over-the-counter medicine, an allergist in California can test whether mulberry is really what you react to and talk through longer-term options like allergy shots.
Sources
More pollen in Fresno
- Fresno grass pollen — peaks April to May.
- Fresno oak pollen — peaks April.
- Fresno olive pollen — peaks March to April.
- Fresno ragweed pollen — peaks August to September.
- Fresno pollen calendar — every allergen, month by month.
- Fresno pollen count today — live tree, grass, and weed levels with a 5-day forecast.
- California pollen season — the statewide calendar and other cities.
Get Fresno pollen alerts
We send a free email whenever pollen is High or Very High in Fresno. No spam, no daily emails when pollen is low. Just a heads-up on the days that matter.
Sign up for free alertsSeasonal pattern based on California pollen data and local sources. Today's reading updated daily. MyPollenPal