Granite Hills, CA has a Mediterranean climate characterized by mild winters and warm summers. In the winter months the temperatures average around 60 degrees Fahrenheit during the day and 40s at night. During the summer temperatures range from 75-95 degrees Fahrenheit with mild ocean breezes helping to keep the area comfortable. Rainfall is generally quite low, usually around 10 inches per year, so that means lots of sunshine for outdoor activities. The location of Granite Hills in sunny southern California provides plenty of opportunities for people to get outside and enjoy nature throughout the year.
Granite Hills, California gets 15 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Granite Hills averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 259 sunny days per year in Granite Hills. The US average is 205 sunny days.
Granite Hills gets some kind of precipitation, on average, 42 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 89 degrees
Winter Low: the January low is 43
Rain: averages 15 inches of rain a year
Snow: averages 0 inches of snow a year