Yankton August Weather

Averages and records for weather in Yankton, South Dakota in the month of August.
Typical Yankton August Weather
1991–2020
Average daily high 84.5 °F
Average daily low 61.0 °F
Average monthly precipitation 3.0 inches
Average monthly snow none
Daily chance of precipitation 27.6%
Daily chance of snow 0%
Yankton August Weather Records
1932–2024
Highest temperature 112 °F August 4, 1934
Lowest temperature 35 °F August 20, 1950
Highest daily low 82 °F August 17, 1988
Lowest daily high 59 °F August 26, 1992
Hottest average high temperature 95.0 °F 1955
Coldest average high temperature 78.1 °F 1992
Most daily precipitation 3.7 inches August 18, 1937
Most monthly precipitation 9.7 inches 1937
Most daily snow none -
Most monthly snow none -
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
August 1 86.0 62.3 105 50
August 2 85.7 62.2 105 48
August 3 85.5 62.0 107 45
August 4 85.4 61.8 112 46
August 5 85.2 61.6 104 47
August 6 85.1 61.5 101 46
August 7 85.0 61.4 103 46
August 8 84.9 61.3 104 46
August 9 84.8 61.2 109 48
August 10 84.8 61.1 106 43
August 11 84.8 61.1 100 45
August 12 84.7 61.1 99 41
August 13 84.7 61.1 104 42
August 14 84.7 61.1 103 44
August 15 84.6 61.0 108 44
August 16 84.5 60.9 107 47
August 17 84.4 60.8 107 44
August 18 84.3 60.7 103 44
August 19 84.2 60.6 103 42
August 20 84.2 60.5 102 35
August 21 84.2 60.3 101 43
August 22 84.1 60.1 106 46
August 23 84.0 59.9 103 44
August 24 83.9 59.7 111 43
August 25 83.6 59.4 101 45
August 26 83.4 59.1 105 43
August 27 83.2 58.9 107 44
August 28 83.0 58.7 101 39
August 29 82.9 58.5 101 42
August 30 82.8 58.3 106 41
August 31 82.6 58.0 103 41
Weather Station Details
Years Station Coordinates
1932–2024 Yankton 2 E location