Vermillion September Weather

Averages and records for weather in Vermillion, South Dakota in the month of September.
Typical Vermillion September Weather
1991–2020
Average daily high 78.7 °F
Average daily low 52.1 °F
Average monthly precipitation 3.0 inches
Average monthly snow none
Daily chance of precipitation 20.3%
Daily chance of snow 0%
Vermillion September Weather Records
1893–2024
Highest temperature 106 °F September 18, 1895
Lowest temperature 23 °F September 29, 1984
Highest daily low 82 °F September 14, 1939
Lowest daily high 42 °F September 29, 1985
Hottest average high temperature 86.6 °F 1939
Coldest average high temperature 67.3 °F 1965
Most daily precipitation 4.9 inches September 11, 1901
Most monthly precipitation 12.4 inches 1901
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
September 1 82.5 57.9 100 39
September 2 82.4 57.6 102 40
September 3 82.3 57.4 102 34
September 4 82.1 57.2 101 41
September 5 81.9 56.9 102 34
September 6 81.6 56.6 101 34
September 7 81.3 56.2 105 36
September 8 80.9 55.7 101 35
September 9 80.5 55.3 102 40
September 10 80.2 54.8 102 34
September 11 79.8 54.2 98 34
September 12 79.5 53.7 99 29
September 13 79.3 53.2 100 32
September 14 79.0 52.7 99 36
September 15 78.7 52.2 100 31
September 16 78.5 51.8 105 32
September 17 78.3 51.4 100 32
September 18 78.0 50.9 106 27
September 19 77.5 50.5 100 25
September 20 77.1 50.0 98 27
September 21 76.6 49.5 97 28
September 22 76.1 49.1 97 27
September 23 75.9 48.8 96 26
September 24 75.7 48.5 95 26
September 25 75.3 48.1 94 23
September 26 74.9 47.6 96 25
September 27 74.6 47.2 97 25
September 28 74.2 46.8 94 26
September 29 73.8 46.3 92 23
September 30 73.3 45.9 92 24
Weather Station Details
Years Station Coordinates
1893–2024 Vermillion 2 SE location