Riverside County, California is situated in the semi-arid region of southern California and has a Mediterranean climate. Summers tend to be hot and dry while winters are mild and wet. Average temperatures range from highs of over 90 degrees Fahrenheit during the summer to lows near 40 degrees Fahrenheit during the winter. Annual rainfall averages around 12 inches, most of which occurs between November and April. Snowfall is rare; however, it can occasionally occur in elevations above 2,500 feet. The area enjoys plenty of sunshine throughout the year with some areas getting up to 350 days a year!
Riverside County, California gets 11 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Riverside County averages 1 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 272 sunny days per year in Riverside County. The US average is 205 sunny days.
Riverside County gets some kind of precipitation, on average, 29 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 99 degrees
Winter Low: the January low is 40
Rain: averages 11 inches of rain a year
Snow: averages 1 inches of snow a year