TX · Allergy Season Guide
Texas Allergy Season Guide
Texas experiences a wide range of climates from humid subtropical in the east to semi-arid in the west, with hot summers and mild winters statewide.
Seasonal focus · Dec–Feb
Cedar Fever — Texas's most intense allergy season
Ashe juniper (mountain cedar) pollen peaks across the Hill Country every winter. Real microscope counts, symptoms, season timing, and relief — in the dedicated cedar fever guide.
Open the Cedar Fever GuideSummary
Texas has 0 active PollyMap collection sites, and is seeking partners in 5 additional cities. Tree pollen typically dominates early spring, grass pollen peaks in late spring and early summer, and weed pollen (including ragweed) extends from late summer through fall.
PollyMap collection status across Texas
Statewide allergy overview
Texas experiences a wide range of climates from humid subtropical in the east to semi-arid in the west, with hot summers and mild winters statewide.
Mountain cedar (Ashe juniper) produces a notorious December-through-February allergy season known as 'cedar fever'. Oak follows in spring, Bermuda grass pollinates through summer, and ragweed peaks in fall.
Humid Gulf air keeps mold counts elevated most of the year, with sharp spikes after thunderstorms.
Allergy patterns vary by elevation and proximity to coast or mountains within Texas, but most of the state shares a common seasonal rhythm of spring tree pollen, summer grass pollen, and late-summer to fall weed pollen.
Texas allergy calendar
Month-by-month intensity for the four major airborne allergen categories.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tree | V.High | V.High | High | High | Mod | Low | Low | Low | Low | Mod | High | V.High |
| Grass | Low | Low | Mod | High | V.High | V.High | High | Mod | Mod | Low | Low | Low |
| Weed | Low | Low | Mod | Mod | Mod | Mod | High | V.High | V.High | High | Mod | Low |
| Mold | Mod | Mod | Mod | High | High | High | V.High | V.High | V.High | High | Mod | Mod |
Top tree pollens
Top weed pollens
Top airborne molds
Major city guides in Texas
TX
Houston
View Houston allergy season guide →
TX
San Antonio
View San Antonio allergy season guide →
TX
Dallas
View Dallas allergy season guide →
TX
Austin
View Austin allergy season guide →
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Fort Worth
View Fort Worth allergy season guide →
Latest PollyMap reports for Texas
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