When planning a visit to South Dakota in the United States of America, it helps to know that temperatures typically range from -3°C (27°F) in January up to 29°C (84°F) during the peak of July. Our detailed climate overview is based on data from Sioux Falls, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
South Dakota offers pleasant conditions in May, June and September, with temperatures typically ranging from 21°C (70°F) to 26°C (79°F).
The cooler season is during the months of January, February, March, November and December.
When it comes to rainfall, South Dakota sees significant variations throughout the year. June tends to be the wettest, receiving 124 mm (4.9 in) of rain, while January is much drier with just 16 mm (0.6 in). For those seeking drier weather, January and November typically see minimal rainfall, never exceeding 18 mm (0.7 in).
