Average Rainfall for South Dakota in August





The tables below give monthly averages for rainfall during August at cities, towns and parks in South Dakota.

Each place has a total for the amount of precipitation it usually receives this month. Most sites also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The rainfall totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

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

Eastern South Dakota

Average monthly precipitation in August
Days Place Inches Milli­metres
8 Aberdeen 2.4 62
9 Brookings 3.1 78
8 Huron 2.4 62
Mitchell 3.1 77
9 Sioux Falls 3.1 77
7 Vermillion 2.8 70
8 Watertown 2.8 71
7 Waubay Wildlife Refuge 2.7 69
8 Yankton 3.0 75

Central South Dakota

August averages for total rainfall
Days Place Inches Milli­metres
7 Academy 2.5 64
8 Mobridge 1.9 49
7 Pickstown 2.5 64
7 Pierre 1.8 46

Western South Dakota

Average amount of rain in August
Days Place Inches Milli­metres
10 Custer 2.3 59
7 Deadwood 2.2 55
7 Hot Springs 1.8 45
6 Interior 1.7 42
9 Lead 2.1 53
6 Lemmon 2.0 51
9 Mt. Rushmore National Memorial 2.0 51
10 Pactola Reservoir Dam 2.3 57
6 Porcupine 1.8 45
9 Rapid City 2.0 50
7 Spearfish 1.6 42
Wind Cave National Park 2.3 57
Reference

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

South Dakota Precipitation
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