Average Temperatures for South Dakota in May

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Average temperatures for May 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 May temperatures
High °F Low °F Place High °C Low °C
69 44 Aberdeen 20 7
68 45 Brookings 20 7
70 46 Huron 21 8
72 49 Mitchell 22 9
70 46 Sioux Falls 21 8
73 49 Vermillion 23 9
68 45 Watertown 20 7
69 47 Waubay Wildlife Refuge 20 8
73 46 Yankton 23 8

Central South Dakota

Average daily temperatures in May
High °F Low °F Place High °C Low °C
70 45 Academy 21 7
69 46 Mobridge 20 8
72 47 Pickstown 22 8
70 46 Pierre 21 8

Western South Dakota

May temperatures: daily averages
High °F Low °F Place High °C Low °C
62 39 Custer 17 4
65 38 Deadwood 18 3
71 42 Hot Springs 22 6
73 47 Interior 23 8
61 40 Lead 16 4
69 43 Lemmon 21 6
61 42 Mt. Rushmore National Memorial 16 5
61 35 Pactola Reservoir Dam 16 2
70 42 Porcupine 21 6
66 45 Rapid City 19 7
69 47 Spearfish 20 8
67 42 Wind Cave National Park 19 5
Reference

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

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