Weather in Rancho Cucamonga in May

Usually the weather in Rancho Cucamonga during May is 17. Highs are expected to be 26 with low average temperatures being 12 celsius. The table below includes more detail:
 

Month Degrees Celsius
Temperature 17
High Temperature 26
Low Temperature 12
Sunshine Per Day 10

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