Winter (December-February): As mentioned, winters in the park are cold and snowy, with the average night temperature falling bellow 15°F.
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Weather in Badlands National Park is variable and unpredictable with temperature extremes ranging from 116° F to -40° F. Summers are hot and dry with occasional violent thunderstorms. Hailstorms and occasional tornadoes can descend on the Badlands.. Winters are typically cold with 12 to 24 inches of total snowfall.
Winter in the Badlands often sees snow blanket the landscape while temperatures range from the low teens to the high 30's. The park sees very little visitation in the winter months and some of the more remote parts are inaccessible.