ND · Allergy Season Guide
Grand Forks Allergy Season Guide
PollyMap is actively seeking a qualified local collection partner in Grand Forks. 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 Grand Forks.
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 Grand Forks.
Become the Official PollyMap Partner for Grand ForksSummary
PollyMap does not yet have weekly collected pollen data for Grand Forks. 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 Grand Forks
Grand Forks shares North Dakota's a continental climate with hot, humid summers, cold winters, and frequent severe weather. at 833 ft elevation.
Grand Forks at 833 ft elevation sits within North Dakota's broader regional climate.
In Grand Forks, tree pollen — including Elm, Cedar, Oak — typically dominates from late winter through spring. Bluegrass grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Grand Forks'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.
Grand Forks monthly allergy calendar
Typical month-by-month intensity for the four major airborne allergen categories in Grand Forks.
| 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 | — | — |
| Weed | Low | Low | Mod | Mod | Mod | Mod | High | V.High | V.High | V.High | Mod | Low |
| Mold | Low | Low | Mod | Mod | High | High | V.High | V.High | V.High | High | Mod | Low |
Most common local pollens — trees
Most common local pollens — weeds
Most common airborne molds
Current PollyMap data for Grand Forks
Official PollyMap Partner in Grand Forks
Frequently asked questions about allergies in Grand Forks
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Related guides
State Guide
North Dakota Allergy Season Guide
Nearby city
Fargo Allergy Season Guide
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Bismarck Allergy Season Guide
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Minot Allergy Season Guide
Nearby city
West Fargo Allergy Season Guide
Library
Pollen species library
Library
Mold species library
Reports
Latest PollyMap reports
Partners
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