AL · Allergy Season Guide
Alabama Allergy Season Guide
Alabama experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
Summary
Alabama has 0 active PollyMap collection sites, and is seeking partners in 6 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 Alabama
While we find a local clinic
Test the air at your own home in Alabama
No allergy clinic is reporting from Alabama yet. Until one does, you can order your own PollyKit — a simple air sampler you hang outdoors or indoors. Send it back and the PollyKit Lab shows you exactly what's floating in your air.
- Pollen from local trees, grasses and weeds
- Airborne mold spores
- Dust mites and other indoor allergens
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Or hang it indoors
Check bedrooms and living spaces for mold, dust mites and more.
Statewide allergy overview
Alabama experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
Oak, pine, cedar, and pecan create an intense, early spring tree season — sometimes coating cars in yellow pine pollen by March. Bermuda and Bahia grass pollinate from late spring through fall, and ragweed dominates the late-summer weed load.
Year-round humidity makes the Southeast one of the highest mold-load regions in the country, with Cladosporium and Alternaria peaking after summer thunderstorms and tropical systems.
Allergy patterns vary by elevation and proximity to coast or mountains within Alabama, but most of the state shares a common seasonal rhythm of spring tree pollen, summer grass pollen, and late-summer to fall weed pollen.
Alabama 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 | Mod | High | V.High | V.High | High | Mod | Low | Low | Low | Low | Low | Mod |
| 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 | V.High | V.High | V.High | V.High | High | Mod | Mod |
Seasonal focus · Oct–Dec
October–December in Alabama
Alabama's fall allergy season runs on ragweed, which peaks from late August through October, and on outdoor mold spores that thrive in the humid air and fall leaf litter. The Gulf Coast around Mobile stays warm enough that weed pollen can linger into November.
December brings the closest thing Alabama gets to a pollen break, but mild winters keep mold active and the respite is short — tree pollen season often starts by late January or February, earlier in the southern part of the state.
Top airborne molds
Major city guides in Alabama
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Huntsville
View Huntsville allergy season guide →
AL
Birmingham
View Birmingham allergy season guide →
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Montgomery
View Montgomery allergy season guide →
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Mobile
View Mobile allergy season guide →
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Tuscaloosa
View Tuscaloosa allergy season guide →
Latest PollyMap reports for Alabama
Frequently asked questions
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