MD
Maryland Pollen Reports
Maryland experiences a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters.
No active PollyMap Partner in Maryland yet
We're seeking a pollen partner in Maryland.
PollyMap doesn't publish cheap forecast estimates — the kind that guess what might be in the air and are often wrong by the time you read them. Every report on PollyMap is real airborne pollen and mold, captured by a PollyKit air sampler and counted under a microscope by a trained local partner.
We're actively seeking an allergy clinic or qualified collector to become the Official PollyMap Partner for Maryland. Exclusive territory, weekly content, and AI-assisted analysis included.
Pollen patterns across Maryland
Oak, birch, cedar, maple, and pine drive a long March-through-May tree season. Grass pollen is heaviest in May and June, and ragweed extends through October.
Maryland pollen calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| grass | ||||||||||||
| weed | ||||||||||||
| mold |
Featured cities in Maryland
Don't see your city? PollyMap partners can serve any city in Maryland — request a local report below.
Don't see your city?
We cover every city in Maryland through our partner network. Request a report for your town and we'll route it to the nearest certified allergist.
Latest reports
Frequently asked questions
When is allergy season in Maryland?
Allergy season in Maryland typically runs from late winter through fall. Tree pollen rises first, followed by grass pollen in late spring and early summer, and weed pollen (especially ragweed) in late summer and fall.
What pollen is highest in Maryland?
In Maryland, the highest-pollen species are typically Oak, Birch, Cedar in spring, Bluegrass grass in early summer, and Ragweed in fall.
What months are worst for allergies in Maryland?
For most people, April and May (tree pollen) and September (ragweed) are the most difficult months in Maryland, with grass pollen creating a third peak in June.
Does Maryland have mold allergies?
Yes. The region's climate supports both outdoor and indoor mold exposure — particularly Alternaria, Cladosporium. Outdoor mold spore counts often rise after rain and in fall when leaves decay.
How can clinics become PollyMap collection partners?
Qualified allergy clinics, naturopathic offices, universities, and environmental health professionals can apply to host a PollyKit and become an official PollyMap collection partner. Applications are reviewed by the PollyMap team.
Become the lead collection partner for Maryland.
PollyMap is actively seeking allergy clinics and qualified collectors in Maryland.
Apply today