Rancho Cucamonga Weather in March

The climate in Rancho Cucamonga during March can be summarized as mild and reasonably dry.

March is in the spring in Rancho Cucamonga and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 6°C (43°F) is normal.

On average March is the 3rd wettest month of the year in Rancho Cucamonga with around 71mm 2.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 9 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rancho Cucamonga in March 2024.