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