Rowland Heights, CA has a warm-summer Mediterranean climate with hot summers and mild winters. Temperatures during the summer months can reach up to the mid-90s while winter months average temperatures in the low 60s. The area experiences very little rainfall throughout the year and the majority of rainfall is seen during late fall and early winter. During the summer months there are usually clear skies with bright sunshine and heat that can become oppressive at times.
Rowland Heights, California gets 16 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Rowland Heights averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 279 sunny days per year in Rowland Heights. The US average is 205 sunny days.
Rowland Heights 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 86 degrees
Winter Low: the January low is 46
Rain: averages 16 inches of rain a year
Snow: averages 0 inches of snow a year