Weather in Kennewick in September
The weather in Kennewick in September varies radically. Daytime is relatively hot since temperatures get higher than 28 degrees, while the nights are much colder and there are no more than 11 degrees. Therefore, it is recommended to pack for both warm and chilly conditions
Avg Temp
11° - 28°
Avg Rainy Days
4
Avg Dry Days
26
Avg Snow Days
0
Weather Facts - Kennewick in September
* The warmest temperature recorded in in September is 39°C
* The coldest temperature recorded in Kennewick in September is (-2°C)
* The average rainfall in Kennewick in September is 6 mm