DE pollen report

Wilmington Pollen Report

PollyMap is actively seeking a qualified local collection partner in Wilmington. This guide uses regional climate and historical allergen data while we recruit a local host.

Population 70,898Elevation 79 ft

Collection coming soon to Wilmington

PollyMap is actively recruiting a verified local partner in Wilmington. Be the first to know — or apply to be the partner.

Pollen patterns in Wilmington

In Wilmington, 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

Wilmington pollen calendar

Typical monthly intensity across the year.

JanFebMarAprMayJunJulAugSepOctNovDec
tree
grass
weed
mold

Historical reports

No historical reports yet.

Cities near Wilmington

Explore pollen activity in nearby cities reported by the PollyMap network.

Frequently asked questions

When is allergy season in Wilmington?

In Wilmington, 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 Wilmington?

The most prevalent local pollens in Wilmington include Oak, Birch, Cedar in the spring season.

What months are worst for allergies in Wilmington?

Most Wilmington allergy sufferers report the worst symptoms during peak tree pollen in March-May and again during ragweed season in September.

Does Wilmington have mold allergies?

Yes. Wilmington's climate supports Alternaria and Cladosporium spore exposure, with counts typically peaking in the warm and humid months.

Why are allergies bad in Wilmington?

Local geography, climate, and seasonal plant cycles all influence allergen load in Wilmington. The combination of regional vegetation and weather creates predictable spring and fall pollen peaks.

Is there a local pollen collection site in Wilmington?

Not yet. PollyMap is actively seeking a qualified local allergy clinic or environmental health partner in Wilmington to host weekly pollen collection.

How can my clinic become a PollyMap partner in Wilmington?

Clinics in Wilmington 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 Wilmington.

Become the lead PollyMap collection partner in Wilmington and join our national network.

Apply today