KY · Allergy Season Guide
Louisville Allergy Season Guide
PollyMap is actively seeking a qualified local collection partner in Louisville. This guide uses regional climate and historical allergen data while we recruit a local host.
PollyMap is actively looking for a qualified local partner in Louisville.
We're recruiting a qualified local allergy clinic — or any clinic that provides allergy care — to become the official pollen collection partner for Louisville.
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Test the air at your own home in Louisville
No allergy clinic is reporting from Louisville 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
Hang it outdoors
See which pollen and mold are in your yard this season.
Or hang it indoors
Check bedrooms and living spaces for mold, dust mites and more.
Summary
PollyMap does not yet have weekly collected pollen data for Louisville. This guide is based on regional climate patterns and historical allergen data while we recruit a local collection partner. Tree pollen peaks in spring, grass pollen in late spring and early summer, and weed pollen in late summer and fall.
Local allergy guide for Louisville
Louisville shares Kentucky's a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters. at 466 ft elevation.
Louisville at 466 ft elevation sits within Kentucky's broader regional climate.
In Louisville, tree pollen — including Oak, Birch, Cedar — typically dominates from late winter through spring. Bluegrass grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Louisville's local mold profile includes Alternaria, Cladosporium, Aspergillus. Spore counts tend to peak after rainfall and during the warm, humid portion of the year.
Local weather — temperature, rainfall, wind, and humidity — drives day-to-day pollen levels. Dry, windy days following warm weather typically produce the highest counts, while heavy rain temporarily clears the air.
Louisville monthly allergy calendar
Typical month-by-month intensity for the four major airborne allergen categories in Louisville.
| 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 | Low | — | — |
| Weed | Low | Low | Low | Mod | Mod | Mod | High | V.High | V.High | High | Mod | Low |
| Mold | Low | Mod | Mod | Mod | High | High | V.High | V.High | V.High | High | Mod | Low |
Most common airborne molds
Frequently asked questions about allergies in Louisville
Related guides
State Guide
Kentucky Allergy Season Guide
Nearby city
Lexington Allergy Season Guide
Nearby city
Bowling Green Allergy Season Guide
Nearby city
Owensboro Allergy Season Guide
Nearby city
Covington Allergy Season Guide
Library
Pollen species library
Library
Mold species library
Reports
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