South Dakota Weather by Month
South Dakota, located in the Midwestern region of the United States, experiences a continental climate with four distinct seasons. The state is characterized by cold, snowy winters and hot, humid summers, with significant variations in temperature throughout the year. Winter in South Dakota can be harsh, particularly in the northern and western parts, with temperatures often plunging below freezing and frequent snowstorms. Spring is a transitional season with milder temperatures but also the possibility of late snow and early thunderstorms. Summer brings warm to hot temperatures, especially in July and August, making it a popular time for outdoor activities. Fall is generally mild and pleasant, with cooler temperatures and beautiful fall foliage, particularly in the Black Hills region. Precipitation is distributed relatively evenly throughout the year, though the summer months tend to be the wettest, with thunderstorms being common. The state’s varied climate and diverse landscapes, including the rolling prairies, the Badlands, and the Black Hills, make it an attractive destination for visitors year-round.
| Month | Avg. Temp (°F) | Avg. Temp (°C) | Avg. Precipitation (in) |
|---|---|---|---|
| January | 7-26 | -14 to -3 | 0.4 |
| February | 11-31 | -12 to -1 | 0.5 |
| March | 21-43 | -6 to 6 | 1.1 |
| April | 32-57 | 0 to 14 | 1.9 |
| May | 44-70 | 7 to 21 | 2.9 |
| June | 54-80 | 12 to 27 | 3.6 |
| July | 60-87 | 16 to 31 | 2.7 |
| August | 58-85 | 14 to 29 | 2.2 |
| September | 47-74 | 8 to 23 | 1.6 |
| October | 34-59 | 1 to 15 | 1.2 |
| November | 22-42 | -6 to 6 | 0.6 |
| December | 11-30 | -12 to -1 | 0.4 |
January
Weather Description
January is the coldest month in South Dakota, with average temperatures ranging from 7°F to 26°F (-14°C to -3°C). The state experiences harsh winter conditions, with frequent snowfalls and icy winds. The days are short and cold, making it a challenging time for outdoor activities, particularly in the northern and western regions.
Clothes to Wear
Layering is essential in January. Thermal undergarments, a heavy winter coat, and insulated boots are necessary to stay warm. Accessories like gloves, a hat, and a scarf are crucial to protect against the biting cold and wind. For those planning to spend time outdoors, snow gear, including snow pants and a face mask, may also be needed.
Major Landmarks Recommended
January is a great time to visit Mount Rushmore National Memorial in the Black Hills, where the snow-covered landscape offers a serene and majestic view of the monument. Deadwood, a historic town in the Black Hills, is another excellent winter destination, offering a mix of history and winter sports. For a quieter experience, the Badlands National Park offers stark winter beauty, though the cold can be intense.
February
Weather Description
February in South Dakota continues the harsh winter weather, with temperatures averaging between 11°F and 31°F (-12°C to -1°C). Snow and cold winds remain prevalent, particularly in the western parts of the state. While the days start to lengthen slightly, the overall conditions remain wintery, with frequent snowstorms and icy roads.
Clothes to Wear
Dressing warmly remains crucial in February. Thermal layers, a thick coat, insulated boots, and warm accessories like gloves and a hat are necessary. A scarf or face mask can help protect against the cold winds. If you plan on participating in winter sports, snow gear such as snow pants and waterproof jackets will be essential.
Major Landmarks Recommended
February is perfect for visiting Custer State Park, where you can enjoy winter activities such as snowshoeing and wildlife viewing. Rapid City offers a variety of indoor attractions, including museums and galleries, perfect for escaping the cold. Deadwood continues to be a popular destination for those interested in history and winter sports.
March
Weather Description
March marks the beginning of spring in South Dakota, with temperatures ranging from 21°F to 43°F (-6°C to 6°C). The weather remains cold, especially in the early part of the month, but gradually begins to warm up. Snow is still common, particularly in the northern and western parts of the state, but rain showers start to become more frequent as well.
Clothes to Wear
Layering remains important in March due to the fluctuating temperatures. A medium-weight jacket, along with warm clothing like sweaters and long pants, is ideal. Waterproof boots and a light rain jacket are recommended, especially for those rainy or slushy days. Hats, gloves, and scarves may still be needed in the mornings and evenings.
Major Landmarks Recommended
March is a great time to visit Badlands National Park, where the snow begins to melt, revealing the park’s unique geological formations. Pierre, the state capital, offers indoor attractions such as the South Dakota State Historical Society Museum, perfect for learning more about the state’s history. The Black Hills are also beautiful this time of year, with early spring hikes offering stunning views.
April
Weather Description
April brings a more noticeable shift towards spring in South Dakota, with temperatures averaging between 32°F and 57°F (0°C to 14°C). The snow begins to melt, and the landscape starts to green up. Rain showers become more common, particularly in the eastern parts of the state, contributing to the growth of spring flowers and budding trees.
Clothes to Wear
Spring layers are ideal for April. A medium-weight jacket, long-sleeve shirts, and comfortable pants are recommended. Waterproof shoes and a rain jacket or umbrella are essential for staying dry during the frequent rain showers. As temperatures can rise during the day, it’s a good idea to have lighter layers underneath.
Major Landmarks Recommended
April is a fantastic time to visit Custer State Park, where the warmer temperatures and blooming vegetation make for excellent hiking and wildlife viewing. Mount Rushmore National Memorial offers a beautiful setting as the snow melts, providing a different perspective of the monument. Sioux Falls is another great destination, with its parks and gardens coming to life in the spring.
May
Weather Description
May in South Dakota brings warmer weather, with average temperatures ranging from 44°F to 70°F (7°C to 21°C). The state becomes lush and green, with flowers blooming and trees fully leafing out. Rain showers are still common, but the warmer temperatures make this a pleasant month for outdoor activities.
Clothes to Wear
May requires a versatile wardrobe to handle the variable weather. Light layers such as t-shirts and long-sleeve shirts, paired with a light jacket or sweater, are ideal. Waterproof clothing, including a rain jacket and sturdy boots, is recommended for those venturing into nature. As temperatures rise, you can start to swap heavier winter gear for lighter, more breathable options.
Major Landmarks Recommended
May is an excellent time to visit Badlands National Park, where the warm weather and blooming vegetation offer stunning hiking and exploration opportunities. The Black Hills provide beautiful trails for hiking and wildlife viewing. For those interested in South Dakota’s cultural history, the Crazy Horse Memorial offers fascinating exhibits and beautiful views of the surrounding landscape.
June
Weather Description
June ushers in the warmth of early summer in South Dakota, with temperatures ranging from 54°F to 80°F (12°C to 27°C). The state’s landscapes are lush and green, with wildflowers in full bloom. The weather is generally mild and pleasant, making it an ideal time for outdoor activities.
Clothes to Wear
With the arrival of warmer weather, lighter clothing becomes more appropriate. T-shirts, light long-sleeve shirts, and hiking pants are ideal for daytime activities. However, evenings can still be cool, so a light jacket or fleece is recommended. Sunscreen, hats, and sunglasses are also important to protect against the strong summer sun.
Major Landmarks Recommended
June is one of the best times to explore Mount Rushmore National Memorial, where the warm weather makes for excellent hiking and wildlife viewing. The Black Hills provide beautiful trails for hiking and wildlife viewing. For those interested in South Dakota’s cultural history, the Crazy Horse Memorial offers fascinating exhibits and beautiful views of the surrounding landscape.
July
Weather Description
July is the warmest month in South Dakota, with temperatures averaging between 60°F and 87°F (16°C to 31°C). The weather is generally warm and dry, making it the peak season for outdoor activities. This is the best time to explore South Dakota’s natural beauty, from its mountains to its deserts.
Clothes to Wear
Summer attire is suitable for July, including t-shirts, shorts, and breathable fabrics. However, temperatures can drop in the evenings, so a light jacket or sweater is still advisable. Comfortable hiking shoes or sandals are recommended for outdoor activities, and don’t forget sun protection, including sunscreen, hats, and sunglasses.
Major Landmarks Recommended
July is perfect for visiting Mount Rushmore National Memorial, where the warm weather makes for excellent hiking and wildlife viewing. The Black Hills provide beautiful trails for hiking and wildlife viewing. For those interested in South Dakota’s cultural history, the Crazy Horse Memorial offers fascinating exhibits and beautiful views of the surrounding landscape.
August
Weather Description
August continues the warm summer weather in South Dakota, with temperatures ranging from 58°F to 85°F (14°C to 29°C). The days are long and sunny, making it an ideal month for outdoor adventures. This is the driest month of the year, particularly in Western Washington, offering perfect conditions for exploring the outdoors.
Clothes to Wear
Light, breathable clothing is best for August, with t-shirts, shorts, and comfortable hiking gear being essential. A lightweight rain jacket or poncho can be useful in case of unexpected showers. Sun protection remains important, so hats, sunglasses, and sunscreen are necessary for any outdoor activities.
Major Landmarks Recommended
August is an excellent time to explore Badlands National Park, with its clear skies and warm weather making for perfect hiking conditions. The Black Hills provide beautiful trails for hiking and wildlife viewing. For those interested in South Dakota’s cultural history, the Crazy Horse Memorial offers fascinating exhibits and beautiful views of the surrounding landscape.
September
Weather Description
September in South Dakota marks the beginning of fall, with temperatures cooling to an average range of 47°F to 74°F (8°C to 23°C). The days are still warm and pleasant, but the nights become cooler, and the first signs of autumn appear in the changing colors of the leaves. This is one of the best months for outdoor activities, with fewer crowds and stunning landscapes.
Clothes to Wear
Layering is key in September, as temperatures can vary widely throughout the day. A combination of t-shirts, long-sleeve shirts, and a medium-weight jacket or fleece is recommended. Comfortable hiking boots and a hat are essential for exploring the outdoors, and a light rain jacket can be useful for unexpected showers.
Major Landmarks Recommended
September is a prime time to visit Badlands National Park, where the fall colors begin to emerge, creating a stunning backdrop for hiking and photography. The Black Hills provide beautiful trails for hiking and wildlife viewing. For those interested in South Dakota’s cultural history, the Crazy Horse Memorial offers fascinating exhibits and beautiful views of the surrounding landscape.
October
Weather Description
October in South Dakota brings more noticeable autumn weather, with temperatures averaging between 34°F and 59°F (1°C to 15°C). The state begins to prepare for winter, with cooler days and chilly nights. Snowfall is possible, particularly at higher elevations, and the fall colors reach their peak, creating a beautiful contrast against the rugged terrain.
Clothes to Wear
As temperatures drop, warmer clothing becomes necessary. Layered clothing, including long-sleeve shirts, sweaters, and a warm jacket, is ideal for October. A beanie, gloves, and waterproof boots are recommended for those venturing into higher elevations or preparing for the possibility of early snowfall.
Major Landmarks Recommended
October is a great time to visit Mount Rushmore National Memorial, where the fall colors provide a stunning backdrop for outdoor activities like hiking, biking, and apple picking. Deadwood is quieter this time of year, offering peaceful landscapes and excellent opportunities to see fall foliage. The Badlands National Park is another must-see destination, offering breathtaking views of the snow-capped mountains and colorful forests.
November
Weather Description
November in South Dakota signals the transition from fall to winter, with average temperatures ranging from 22°F to 42°F (-6°C to 6°C). Snow becomes more common, especially in the mountains, and the state begins to experience winter conditions. The days are shorter, and the weather is often cold and crisp.
Clothes to Wear
Warm, insulated clothing is necessary for November, including thermal layers, a heavy winter coat, and insulated boots. Hats, gloves, and scarves are also important to protect against the cold. If you plan to spend time outdoors, consider wearing waterproof clothing to handle snow and slush.
Major Landmarks Recommended
November is a quieter time to visit Mount Rushmore National Memorial, where the snow-capped mountains create a breathtaking winter landscape. Deadwood begins to transition to winter operations, offering a peaceful and serene environment for wildlife viewing. The Black Hills provide beautiful trails for hiking and wildlife viewing.
December
Weather Description
December in South Dakota is marked by cold temperatures and frequent snowfall, with average temperatures ranging from 11°F to 30°F (-12°C to -1°C). The state is transformed into a winter wonderland, with snow covering the mountains and plains. The days are short, but the festive atmosphere of the holiday season brings warmth and cheer to the cold winter days.
Clothes to Wear
Winter gear is essential in December, including thermal underwear, a thick sweater, a heavy winter coat, and insulated boots. Accessories like hats, gloves, and scarves are necessary to protect against the cold and wind. Layering is key to staying warm, especially if you plan to spend time outdoors.
Major Landmarks Recommended
December is the perfect time to visit Mount Rushmore National Memorial, where the ski season is in full swing, and the town is decked out in holiday lights and decorations. Deadwood is another excellent destination for skiing and snowboarding, with reliable snowfall and well-maintained trails. Badlands National Park hosts various holiday events, including the Christmas Ship Festival, which adds a festive glow to the city’s waterfront.
