KY pollen report
Louisville Pollen Report
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.
Collection coming soon to Louisville
PollyMap is actively recruiting a verified local partner in Louisville. Be the first to know — or apply to be the partner.
Pollen patterns in Louisville
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.
Top trees
- Oak
- Birch
- Cedar
- Maple
- Pine
Top grasses
- Bluegrass
- Bermuda
- Rye
- Fescue
Top weeds
- Ragweed
- Pigweed
- Plantain
Top molds
- Alternaria
- Cladosporium
- Aspergillus
Louisville pollen calendar
Typical monthly intensity across the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tree | ||||||||||||
| grass | ||||||||||||
| weed | ||||||||||||
| mold |
Historical reports
Cities near Louisville
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
When is allergy season in Louisville?
In Louisville, allergy season starts with tree pollen in late winter and early spring, transitions to grass pollen in May and June, and ends with weed pollen — primarily ragweed and sagebrush — from August through October.
What pollen is highest in Louisville?
The most prevalent local pollens in Louisville include Oak, Birch, Cedar in the spring season.
What months are worst for allergies in Louisville?
Most Louisville allergy sufferers report the worst symptoms during peak tree pollen in March-May and again during ragweed season in September.
Does Louisville have mold allergies?
Yes. Louisville's climate supports Alternaria and Cladosporium spore exposure, with counts typically peaking in the warm and humid months.
Why are allergies bad in Louisville?
Local geography, climate, and seasonal plant cycles all influence allergen load in Louisville. The combination of regional vegetation and weather creates predictable spring and fall pollen peaks.
Is there a local pollen collection site in Louisville?
Not yet. PollyMap is actively seeking a qualified local allergy clinic or environmental health partner in Louisville to host weekly pollen collection.
How can my clinic become a PollyMap partner in Louisville?
Clinics in Louisville can apply to become the official PollyMap collection partner. Approved partners receive PollyKits weekly, conduct 24-48 hour collections, and mail samples back for microscope analysis.
Bring real pollen data to Louisville.
Become the lead PollyMap collection partner in Louisville and join our national network.
Apply today