Tulsa, OK Grass Pollen
Grass pollen in Tulsa usually peaks around May, reaching High at its worst. Tulsa's allergy year mirrors the rest of eastern Oklahoma: cedar in winter, elm and oak in spring, grass in summer, and ragweed in fall, with the wooded Cross Timbers adding to the tree load.
Grass keeps counts up from May into summer across northeastern Oklahoma.
Grass in Tulsa today
Monday, July 27, 2026
Grass pollen by month in Tulsa
How grass usually runs across the year. The current month is outlined.
Managing grass season in Tulsa
If grass is your trigger, start a daily antihistamine like cetirizine (Zyrtec) or loratadine (Claritin) a week or two before the May 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 Oklahoma can test whether grass is really what you react to and talk through longer-term options like allergy shots.
Sources
More pollen in Tulsa
- Tulsa ragweed pollen — peaks September.
- Tulsa oak pollen — peaks April.
- Tulsa mountain cedar pollen — peaks January.
- Tulsa elm pollen — peaks February to March.
- Tulsa pollen calendar — every allergen, month by month.
- Tulsa pollen count today — live tree, grass, and weed levels with a 5-day forecast.
- Oklahoma pollen season — the statewide calendar and other cities.
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Sign up for free alertsSeasonal pattern based on Oklahoma pollen data and local sources. Today's reading updated daily. MyPollenPal