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Weather in September in Sioux Falls, South Dakota

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< September >
 
Normal Max/ High Temperature 23°C (73°F)
 
Average Temperature 16°C (61°F)
 
Min/ Low Temperature 9°C (49°F)
 
Normal Precipitation 77mm (3in)
Number of Wet Days (probability of rain on a day) 7 (23%)
Average Daylight per day 12:27
Sun altitude at solar noon on the 21st day.
46.9°


  • The average temperature in Sioux Falls, South Dakota in September is very mild at 16.1 °C (60.98 °F).
  • Afternoons can be really warm with average high temperatures reaching 22.8 °C (73 °F).
  • Overnight temperatures are generally a little cool with an average low of 9.3 °C (48.7 °F).
  • In September the mean diurnal temperature range/ variation is 13.5 °C (24.3 °F).
  • The weather in September is somewhat dry with sporadic rain. Just 76.7mm (3in) of H2O is dropped during an average of 7 days.
  • The shortest day is 11:42 long and the longest day is 13:11 long with an average length of 12:27.

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Weather Trend Graph for September in Sioux Falls, South Dakota, Usa

Graph of weather in Sioux Falls, South Dakota in September

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