IL pollen report
Joliet Pollen Report
PollyMap is actively seeking a qualified local collection partner in Joliet. This guide uses regional climate and historical allergen data while we recruit a local host.
Collection coming soon to Joliet
PollyMap is actively recruiting a verified local partner in Joliet. Be the first to know — or apply to be the partner.
Pollen patterns in Joliet
In Joliet, tree pollen — including Maple, Oak, Birch — 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
- Maple
- Oak
- Birch
- Ash
- Walnut
Top grasses
- Bluegrass
- Timothy
- Orchard
- Rye
Top weeds
- Ragweed
- Lamb's quarters
- Pigweed
- Plantain
Top molds
- Alternaria
- Cladosporium
- Aspergillus
- Penicillium
Joliet 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 Joliet
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
When is allergy season in Joliet?
In Joliet, 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 Joliet?
The most prevalent local pollens in Joliet include Maple, Oak, Birch in the spring season.
What months are worst for allergies in Joliet?
Most Joliet allergy sufferers report the worst symptoms during peak tree pollen in March-May and again during ragweed season in September.
Does Joliet have mold allergies?
Yes. Joliet's climate supports Alternaria and Cladosporium spore exposure, with counts typically peaking in the warm and humid months.
Why are allergies bad in Joliet?
Local geography, climate, and seasonal plant cycles all influence allergen load in Joliet. The combination of regional vegetation and weather creates predictable spring and fall pollen peaks.
Is there a local pollen collection site in Joliet?
Not yet. PollyMap is actively seeking a qualified local allergy clinic or environmental health partner in Joliet to host weekly pollen collection.
How can my clinic become a PollyMap partner in Joliet?
Clinics in Joliet 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 Joliet.
Become the lead PollyMap collection partner in Joliet and join our national network.
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