The climate in 91709 Chino Hills, CA is typically mild with hot summers and cool winters. Average high temperatures reach into the mid-90s in July and August, while low temperatures rarely dip below freezing in the winter months. The area receives less precipitation than other parts of California, with only around 11 inches of rain each year on average. Summers are usually dry and sunny, although thunderstorms can occasionally occur during the warmer months. Winters tend to be mild and wetter than summers overall, but snowfall is rare in this part of California.
Chino Hills (zip 91709), California gets 15 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Chino Hills (zip 91709) averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 281 sunny days per year in Chino Hills (zip 91709). The US average is 205 sunny days.
Chino Hills (zip 91709) gets some kind of precipitation, on average, 33 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 92 degrees
Winter Low: the January low is 42
Rain: averages 15 inches of rain a year
Snow: averages 0 inches of snow a year