Weather in Rancho Cucamonga in September

More often than not the weather in Rancho Cucamonga during the month of September is 21 with a general average high of 29 with low of 16. See our table below for a full breakdown:
 

Month Degrees Celsius
Temperature 21
High Temperature 29
Low Temperature 16
Sunshine Per Day 10

Useful Links: Rancho Cucamonga Weather: Average Weather & Yearly Climate