Expect the average daily weather in Rancho Cucamonga for the duration of January is 15, with highs being around 23 and low being 11. The table below has further info:
| Month | Degrees Celsius |
|---|---|
| Temperature | 15 |
| High Temperature | 23 |
| Low Temperature | 11 |
| Sunshine Per Day | 9 |
Useful Links: Rancho Cucamonga Weather: Average Weather & Yearly Climate