Sioux Falls Weather In September
The highest recorded temperature in September for Sioux Falls for the past 65 years was 104 degrees Fahrenheit, most recently registered on September 6, 1976, and the typical high is 74. The coldest September day in Sioux Falls for the past 65 years was 22 registered on September 30, 1974, while the typical low recorded temperature is 48.
According to National Weather Service historical Sioux Falls September Weather data, on September 28, 1985, the high temperature did not exceed 41 degrees Fahrenheit, the lowest high measured in Sioux Falls in the past 65 years. Weather Service records additionally show that on September 16, 1955, the recorded low temperature for the day did not drop below 76 degrees, the highest low measured in Sioux Falls in the last 65 years.
Weather Service historical data shows that the average daily high temperature in Sioux Falls on September First is 80 degrees Fahrenheit and the average high on the last day of September is 70 degrees. The low temperature in Sioux Falls in September on the first day of the month averages 57 degrees and the low temperature on the last day of the month averages 43 degrees.
Sioux Falls usually receives an average of 2.58 inches of precipitation during the month. September Sioux Falls Weather records show that on September 11, 1966 Sioux Falls received 4.02 inches of rain, the most rain measured in a single day in September.