OK · Allergy Season Guide
Oklahoma Allergy Season Guide
Oklahoma experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
Summary
Oklahoma 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 Oklahoma
Statewide allergy overview
Oklahoma experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
Elm, cedar, oak, and cottonwood lead the spring tree season. The plains have some of the highest ragweed counts in North America from August through October.
Wide-open agricultural land combined with summer humidity produces very high outdoor mold counts, especially Alternaria and Cladosporium after summer storms and harvest.
Allergy patterns vary by elevation and proximity to coast or mountains within Oklahoma, but most of the state shares a common seasonal rhythm of spring tree pollen, summer grass pollen, and late-summer to fall weed pollen.
Oklahoma 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 | Low | Mod | V.High | V.High | High | Mod | Low | Low | Low | Low | Low | Low |
| Grass | — | — | Low | Mod | High | V.High | High | Mod | Low | Low | — | — |
| Weed | Low | Low | Mod | Mod | Mod | Mod | High | V.High | V.High | V.High | Mod | Low |
| Mold | Low | Low | Mod | Mod | High | High | V.High | V.High | V.High | High | Mod | Low |
Top tree pollens
Top weed pollens
Top airborne molds
Major city guides in Oklahoma
OK
Oklahoma City
View Oklahoma City allergy season guide →
OK
Tulsa
View Tulsa allergy season guide →
OK
Norman
View Norman allergy season guide →
OK
Broken Arrow
View Broken Arrow allergy season guide →
OK
Lawton
View Lawton allergy season guide →
Latest PollyMap reports for Oklahoma
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Frequently asked questions
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