South Dakota Weather

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South Dakota has a typical interior continental climate. Its summers are hot and its winters are extremely cold, with high winds and periodic droughts. The average July temperature is 74 degrees F. The average temperature in January is 12 degrees F.

Normal annual precipitation averaged 24.7 inches in Sioux Falls in the southeastern part of the state, and decreases to less than 1 foot in the northwest. An average of 41 in of snow falls annually in Sioux Falls.