ND · Allergy Season Guide
Bismarck Allergy Season Guide
PollyMap is actively seeking a qualified local collection partner in Bismarck. 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 Bismarck.
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 Bismarck.
Become the Official PollyMap Partner for BismarckSummary
PollyMap does not yet have weekly collected pollen data for Bismarck. 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 Bismarck
Bismarck shares North Dakota's a continental climate with hot, humid summers, cold winters, and frequent severe weather. at 1,686 ft elevation.
Bismarck at 1,686 ft elevation sits within North Dakota's broader regional climate.
In Bismarck, 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.
Bismarck'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.
Bismarck monthly allergy calendar
Typical month-by-month intensity for the four major airborne allergen categories in Bismarck.
| 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 Bismarck
Official PollyMap Partner in Bismarck
Frequently asked questions about allergies in Bismarck
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Related guides
State Guide
North Dakota Allergy Season Guide
Nearby city
Fargo Allergy Season Guide
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Grand Forks Allergy Season Guide
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Minot Allergy Season Guide
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West Fargo Allergy Season Guide
Library
Pollen species library
Library
Mold species library
Reports
Latest PollyMap reports
Partners
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