DE · Allergy Season Guide
Wilmington Allergy Season Guide
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.
PollyMap is actively looking for a qualified local partner in Wilmington.
We're recruiting a qualified local allergy clinic, naturopathic clinic, university, environmental health professional, or other qualified organization to become the official pollen collection partner for Wilmington.
Become the Official PollyMap Partner for WilmingtonSummary
PollyMap does not yet have weekly collected pollen data for Wilmington. This guide is based on regional climate patterns and historical allergen data while we recruit a local collection partner. Tree pollen peaks in spring, grass pollen in late spring and early summer, and weed pollen in late summer and fall.
Local allergy guide for Wilmington
Wilmington shares Delaware's a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters. at 79 ft elevation.
Wilmington at 79 ft elevation sits within Delaware's broader regional climate.
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.
Wilmington's local mold profile includes Alternaria, Cladosporium, Aspergillus. Spore counts tend to peak after rainfall and during the warm, humid portion of the year.
Local weather — temperature, rainfall, wind, and humidity — drives day-to-day pollen levels. Dry, windy days following warm weather typically produce the highest counts, while heavy rain temporarily clears the air.
Wilmington monthly allergy calendar
Typical month-by-month intensity for the four major airborne allergen categories in Wilmington.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tree | Low | Mod | V.High | V.High | High | Mod | Low | Low | Low | Low | Low | Low |
| Grass | — | Low | Mod | High | V.High | High | Mod | Low | Low | Low | — | — |
| Weed | Low | Low | Low | Mod | Mod | Mod | High | V.High | V.High | High | Mod | Low |
| Mold | Low | Mod | Mod | Mod | High | High | V.High | V.High | V.High | High | Mod | Low |
Most common airborne molds
Current PollyMap data for Wilmington
Official PollyMap Partner in Wilmington
Frequently asked questions about allergies in Wilmington
The PollyKit — $39.99
Test the air at your exact address.
Test the air at your exact address — not a regional forecast, your actual air. Tests for pollen, mold spores, dust mites, and other airborne particles. Ships nationwide. Results in 3–5 days.
- 1
Hang
Hang the PollyKit indoors or outdoors at your home, office, or classroom for 24–48 hours.
- 2
Return
Mail it back in the included prepaid envelope.
- 3
Results
Receive your personal lab report showing what's actually in your air.
Related guides
State Guide
Delaware Allergy Season Guide
Nearby city
Dover Allergy Season Guide
Nearby city
Newark Allergy Season Guide
Nearby city
Middletown Allergy Season Guide
Nearby city
Smyrna Allergy Season Guide
Library
Pollen species library
Library
Mold species library
Reports
Latest PollyMap reports
Partners
Become a partner
Get local pollen alerts for Wilmington.
Subscribe and we'll email you when new local reports are published.
Subscribe to alerts