SD · Allergy Season Guide
South Dakota Allergy Season Guide
South Dakota experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
Summary
South Dakota has 0 active PollyMap collection sites, and is seeking partners in 5 additional cities. Tree pollen typically dominates early spring, grass pollen peaks in late spring and early summer, and weed pollen (including ragweed) extends from late summer through fall.
PollyMap collection status across South Dakota
While we find a local clinic
Test the air at your own home in South Dakota
No allergy clinic is reporting from South Dakota yet. Until one does, you can order your own PollyKit — a simple air sampler you hang outdoors or indoors. Send it back and the PollyKit Lab shows you exactly what's floating in your air.
- Pollen from local trees, grasses and weeds
- Airborne mold spores
- Dust mites and other indoor allergens
Hang it outdoors
See which pollen and mold are in your yard this season.
Or hang it indoors
Check bedrooms and living spaces for mold, dust mites and more.
Statewide allergy overview
South Dakota experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
Elm, cedar, oak, and cottonwood lead the spring tree season. The plains have some of the highest ragweed counts in North America from August through October.
Wide-open agricultural land combined with summer humidity produces very high outdoor mold counts, especially Alternaria and Cladosporium after summer storms and harvest.
Allergy patterns vary by elevation and proximity to coast or mountains within South Dakota, but most of the state shares a common seasonal rhythm of spring tree pollen, summer grass pollen, and late-summer to fall weed pollen.
South Dakota allergy calendar
Month-by-month intensity for the four major airborne allergen categories.
| 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 |
Top tree pollens
Top weed pollens
Top airborne molds
Major city guides in South Dakota
SD
Sioux Falls
View Sioux Falls allergy season guide →
SD
Rapid City
View Rapid City allergy season guide →
SD
Aberdeen
View Aberdeen allergy season guide →
SD
Brookings
View Brookings allergy season guide →
SD
Watertown
View Watertown allergy season guide →
Latest PollyMap reports for South Dakota
Frequently asked questions
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