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South Dakota Weather Records

Weather averages and records for the U.S. state of South Dakota based on data made available by the NOAA.
South Dakota Statewide Averages
Average temperatures and precipitation over the entire territory of the state, from 1991–2020.
Month High (°F) Low (°F) Precipitation (in)
January 28.6 8.2 0.5
February 32.8 11.5 0.6
March 44.7 21.9 1.0
April 57.0 32.0 2.2
May 68.3 43.5 3.3
June 78.6 54.1 3.5
July 85.6 59.7 2.8
August 83.9 57.4 2.3
September 75.2 47.8 1.9
October 59.6 34.7 1.8
November 44.1 22.1 0.7
December 31.9 12.1 0.6
Entire Year 57.5 33.8 21.2
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South Dakota Average Temperature by Year
South Dakota Cities
Yearly weather averages for various places in South Dakota, from 1991–2020.
City Average (°F) Record (°F) Yearly (inches)
High Low High Low Precipitation Snow
Aberdeen 55.3 32.1 115 -46 21.8 42.5
Brookings 53.8 32.9 109 -41 25.0 36.5
Camp Crook 59.4 32.3 114 -57 15.3 48.1
Flandreau 53.8 32.8 112 -40 27.9 40.6
Hot Springs 63.8 33.9 112 -41 18.4 33.6
Huron 57.4 34.8 112 -43 23.3 44.6
Interior 64.1 38.3 114 -31 18.7 35.5
Lead 55.8 34.5 101 -40 31.4 179.3
Mitchell 58.6 36.4 116 -40 21.7 35.1
Mobridge 55.6 34.3 117 -44 17.5 36.9
Mount Rushmore 55.2 36.8 100 -38 23.6 59.6
Pierre 59.5 35.6 117 -35 20.0 38.6
Rapid City 60.3 33.9 111 -31 17.3 47.9
Sioux Falls 57.1 35.9 110 -36 27.8 45.2
Sisseton 54.4 34.4 113 -37 25.0 46.5
Spearfish 59.6 37.1 110 -33 20.5 n/a
Summit 53.3 31.8 103 -40 25.1 57.3
Vermillion 61.5 37.7 114 -38 27.5 35.1
Watertown 53.7 33.2 110 -40 22.8 41.1
Winner 61.8 37.5 115 -38 22.8 48.4
Yankton 60.1 36.8 116 -31 28.4 39.7