Weather in Bismarck in September
The weather in Bismarck in September is variable, when the days are comfortable with over 25 degrees, while it might get colder when night falls with less than 7 degrees on average. Also, there are around 12 days of rain, so it is advisable to take appropriate clothes.
Avg Temp
7° - 25°
Avg Rainy Days
12
Avg Dry Days
18
Avg Snow Days
0
Weather Facts - Bismarck in September
* The warmest temperature recorded in in September is 39°C
* The coldest temperature recorded in Bismarck in September is (-7°C)
* The average rainfall in Bismarck in September is 44 mm