Average Temperatures for South Dakota in September

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Average temperatures for September at cities, towns, parks and lakes throughout South Dakota are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1981 to 2010.

You can jump to a separate table for each region of the state: Eastern, Central and Western South Dakota.

Eastern South Dakota

Average September temperatures
High °F Low °F Place High °C Low °C
72 46 Aberdeen 22   8
71 47 Brookings 22   8
75 49 Huron 24   9
76 51 Mitchell 24 11
73 49 Sioux Falls 23 10
78 52 Vermillion 26 11
71 47 Watertown 21   9
72 50 Waubay Wildlife Refuge 22 10
77 50 Yankton 25 10

Central South Dakota

Average daily temperatures in September
High °F Low °F Place High °C Low °C
76 48 Academy 25   9
74 50 Mobridge 23 10
77 51 Pickstown 25 11
77 49 Pierre 25 10

Western South Dakota

September temperatures: daily averages
High °F Low °F Place High °C Low °C
70 43 Custer 21   6
71 43 Deadwood 22   6
79 45 Hot Springs 26   7
81 51 Interior 27 11
68 45 Lead 20   7
75 46 Lemmon 24   8
68 48 Mt. Rushmore National Memorial 20   9
69 38 Pactola Reservoir Dam 20   3
78 44 Porcupine 26   7
73 50 Rapid City 23 10
76 50 Spearfish 24 10
76 45 Wind Cave National Park 24   7
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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