South Dakota Allergy Season: Peak, Timing, and Symptoms

Written by Lev Baker
Published: February 9, 2023
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South Dakota is the land of wide-open spaces and breathtaking natural beauty, but for allergy sufferers, it can also be a land of itchy eyes, stuffy noses, and sneezing. 

Whether you’re a long-time resident or simply stopping by for a visit, it’s vital to be aware of the potential allergens in South Dakota and the symptoms they can cause — especially if you’re an allergy sufferer. With some knowledge and preparation, you can still enjoy this majestic state, even during allergy season.

Is South Dakota Good for Allergy Sufferers?

When it comes to the question of whether South Dakota is a good place for allergy sufferers, the answer is somewhat of a mixed bag.

On the one hand, it’s not necessarily known for having exceptionally high or low levels of allergens compared to other states. This means those with allergies can expect an experience that falls somewhere in the middle of the spectrum.

However, it’s important to note South Dakota’s diverse seasons and landscapes offer a unique blend of potential triggers for those with sensitivities.

It may not be the best place for allergy sufferers, but it’s not the worst. It’s all about managing your allergies and enjoying the great things about South Dakota.

When is Allergy Season in South Dakota?

Welcome to allergy season in South Dakota, a time when the state’s unique mix of allergens comes into play. But unlike other states, where an allergy season is a one-size-fits-all event, South Dakota’s allergy season is a little more nuanced. Depending on the specific allergen and location within the state, the timing and peak of allergy season can vary.

  • Spring into allergy season. As April and May arrive, trees begin pollinating, releasing their pollen into the air and causing allergy symptoms for those sensitive to tree pollen.
  • Grass is the guilty party. The last week of May through July is peak grass allergy season, with more people allergic to grass than any other allergen.
  • Weeds take over. Late July through to the first hard freeze marks the season for weed allergies, with ragweed causing a lot of trouble in the South Dakota region around the middle of August.
  • Mold spores on the rise. Summer and fall bring an abundance of outdoor mold spores, with thousands of types causing allergy symptoms for sensitive individuals.

Peak Months for Seasonal Allergies in South Dakota

While the harsh winter months may offer a reprieve, the spring and summer bring a tide of ailments. April, May, June, and September, in particular, are known to be the most trying times for those suffering from seasonal allergies.

How Long is The Allergy Season in South Dakota?

Allergy Season

As the seasons change in South Dakota, so do the allergens that can trigger allergic reactions.

©Jim Vallee/

The allergy season starts in early spring, when the first buds appear on the trees, and continues until the first frost of fall. The allergy season is an actual test of endurance but also a reminder of the beauty and diversity of nature.

Most Common Allergens in South Dakota

Allergies can be a real pain, and it turns out that most common allergens can vary depending on where you’re located in South Dakota. Let’s get into the details.

Rapid City/Hot Springs

As the seasons change in South Dakota, so do the allergens that can trigger allergic reactions. Residents of Rapid City and Hot Spring areas will have to deal with the following allergens.

SeasonAllergen TypeAllergens
SpringTree PollenMaple, Willow, Ash, Box Elder
SummerGrass PollenBluegrass, Ryegrass, Timothy, Bent Grasses
FallWeed PollenRagweed, Wormwood, Sagebrush, Oldman, Amaranth


As the weather warms up in the Mobridge and Pierre areas of South Dakota, it’s not just the flowers that begin to bloom — so do the allergens.

SeasonAllergen TypeAllergens
SpringTree PollenBox Elder, Oak, Maple, Willow, Ash
SummerGrass PollenCorn, Prairie Grass
FallWeed PollenWormwood, Oldman, Sagebrush


The following allergens are most common in the Aberdeen, Watertown, and Mitchell areas.

SeasonAllergen TypeAllergens
SpringTree PollenAsh, Oak, Maple, Willow
SummerGrass PollenBent, Corn
FallWeed PollenWormwood, Ragweed, Sagebrush

Sioux Falls/Brookings

Residents of Sioux Falls and Brookings face the following allergens.

SeasonAllergen TypeAllergens
SpringTree PollenWillow, Ash, Oak, Maple, Box Elder, Walnut, Cedar
SummerGrass PollenBent, Corn, Timothy
FallWeed PollenWormwood, Ragweed


Allergy sufferers from Yankton and Vermilion deal mainly with the following allergens.

SeasonAllergen TypeAllergens
SpringTree PollenAsh, Cedar, Maple, Oak, Walnut, Willow
SummerGrass PollenPrairie, Corn
FallWeed PollenAmaranth, Ragweed

Allergy Symptoms in South Dakota

South Dakota residents who suffer from allergies may experience the following symptoms:

  • Sneezing
  • Congestion
  • Watery Eyes
  • Runny nose
  • Itchy Eyes
  • Scratchy Throat
  • Itchy Nose
  • Itchy Ears
  • Asthma
  • Headaches
  • Fatigue
  • Coughing
  • Hives or Rash
  • Anaphylaxis (in severe cases)

While some may experience only mild sniffles, others may have a more severe allergic reaction. Understanding the signs and symptoms of an allergic reaction can help you better anticipate and manage your mild or severe reactions.

Best Allergy Treatments in South Dakota

Without a doubt, allergies can disturb your life, but thankfully, some beneficial treatments are available to improve your quality of life. Here are some of the best allergy treatments available in South Dakota.

Over-the-Counter Medications

  • Antihistamines: These medications work by blocking the action of histamine, a chemical that the body releases during an allergic reaction. They can help to relieve symptoms such as sneezing, runny nose, and itching. Some popular over-the-counter antihistamines include Claritin, Zyrtec, and Allegra.
  • Decongestants: These medications can help to relieve nasal congestion by narrowing the blood vessels in the nasal passages. Some popular over-the-counter decongestants include Sudafed and Afrin.
  • Nasal sprays: Some nasal sprays, such as Flonase and Nasacort, can help to relieve nasal congestion and other allergy symptoms. They work by reducing inflammation in the nasal passages.

Prescription Medications

  • Immunomodulator: Medications, such as Singulair, can help reduce the severity of the symptoms and the allergic reaction by modifying the immune system’s response to allergens.
  • Steroids: Steroids can be taken orally or inhaled and can help to reduce inflammation and relieve symptoms such as nasal congestion and itching.
  • Allergen immunotherapy: This treatment involves injecting small amounts of an allergen into the body to help the person build up a tolerance to it over time. This can help to reduce the severity of allergic reactions to that specific allergen.

Lifestyle Changes

  • Avoid triggers. One of the best ways to manage allergies is to avoid exposure to the allergens that trigger your symptoms in the first place. This may involve staying indoors on high pollen days, closing windows and doors to remove dust and mold, and avoiding pets if you have animal allergies.
  • Keep it clean. Regular cleaning and vacuuming can help to keep allergens such as dust and pet dander under control.
  • Use air purifiers. Air purifiers can help remove allergens from the air and make breathing easier.
  • Keep hydrated. Drinking plenty of water can help to thin mucus, making it easier to clear your nasal passages.

Overall, the best allergy treatment for you will depend on the specific allergens that trigger your symptoms and the severity of your allergies. It may be necessary to try a combination of treatments and lifestyle changes to find the most effective solution.

Be sure to consult a doctor if your symptoms are severe or if you are having trouble managing your allergies.

Testing and Diagnosis for Allergy Sufferers in South Dakota

Imagine constantly struggling with red, watery eyes, a runny nose, or hives, all because of those pesky allergies. For many South Dakotans, this is a daily reality. But with proper testing and diagnosis, allergy sufferers can finally take charge and live a life free from discomfort.

It all starts with a visit to the doctor for a physical examination and a rundown of your medical history. The doctor will carefully examine you for any signs of an allergic reaction and may even perform a skin test by placing a trace amount of the allergen on your skin to see if a reaction occurs. This helps pinpoint exactly what is causing your allergies.

Once the allergen has been identified, your doctor can recommend a treatment plan tailored to your needs. This could include taking over-the-counter or prescription medications, avoiding exposure to the allergen, or undergoing immunotherapy, also known as allergy shots. This involves receiving a series of injections containing small amounts of the allergen over a period of time, gradually desensitizing your body to it.

But that’s not all. Some doctors in South Dakota also recommend alternative therapies like acupuncture or homeopathy to relieve allergy sufferers.

In conclusion, testing and diagnosis are crucial in helping allergy sufferers in South Dakota manage their symptoms. By identifying the allergen and providing effective treatment options, you can breathe easily and enjoy a comfortable, symptom-free life.

Homemade Remedies for Seasonal Allergies in South Dakota

The rolling prairies and verdant forests may be a sight to behold, but for many South Dakota residents, they also bring seasonal allergy symptoms. Luckily, there are ways to combat these pesky allergies without resorting to harsh pharmaceuticals.

Here are five homemade remedies to keep those allergies at bay:

  1. Steam inhalation: Boil a pot of water and add a few drops of eucalyptus oil. Lean over the pot and breathe in the steam through your nose. The eucalyptus oil will help to clear your nasal passages and soothe your sinuses.
  2. Local honey: Eating local honey is a popular home remedy, as it helps to build up a tolerance to the pollen in the area. Try adding a spoonful to your morning tea or cereal.
  3. Herbal tea: Try brewing a cup of chamomile, nettle, or elderflower tea. These herbs have natural antihistamine properties that can help to reduce allergy symptoms.
  4. Nasal rinse: A saline nasal rinse can help to flush out any pollen or other irritants from your nasal passages. Mix a teaspoon of salt and a tiny pinch of baking soda in a cup of warm water, then use a neti pot or a bulb syringe to flush out your nasal passages.
  5. Apple cider vinegar: To make a homemade nasal spray, combine equal amounts of water and apple cider vinegar. Use this mixture to clear the nasal passages and reduce inflammation.

These natural remedies can help alleviate allergy symptoms and allow you to enjoy the beauty of South Dakota’s changing seasons. 

Don’t let allergies hold you back; try these homemade solutions and see the difference it makes. Allergy season can be tough for allergy sufferers, so every little bit certainly helps!

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About the Author

Lev is a writer at AZ Animals who primarily covers topics on animals, geography, and plants. He has been writing for more than 4 years and loves researching topics and learning new things. His three biggest loves in the world are music, travel, and animals. He has his diving license and loves sea creatures. His favorite animal in the world is the manta ray.

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