Sunnyvale, CA has a Mediterranean climate with mild, wet winters and dry summers. The temperatures in the summer months can range from an average high of 82°F to a low of 55°F, while winter temperatures range from an average high of 60°F to a low of 40°F. Rainfall is generally highest in the winter and spring months and lowest in the summer. Sunnyvale receives approximately 17 inches of rain annually.
Sunnyvale, California gets 15 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sunnyvale averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 260 sunny days per year in Sunnyvale. The US average is 205 sunny days.
Sunnyvale gets some kind of precipitation, on average, 63 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 80 degrees
Winter Low: the January low is 42
Rain: averages 15 inches of rain a year
Snow: averages 0 inches of snow a year