San Ramon, CA has a Mediterranean climate that is characterized by mild temperatures and minimal precipitation. Summers in San Ramon tend to be dry and warm with daytime highs into the low 90s (°F), whilst nights are generally cool and can dip down into the mid-50s (°F). Winters are generally mild with daytime highs in the mid-60s (°F) and nighttime lows in the low 40s (°F). On average, this area receives about 28 inches of rain each year. Snowfall is rare but not completely unheard of. San Ramon's proximity to the Bay makes for a pleasant climate throughout most of the year.
San Ramon, California gets 19 inches of rain, on average, per year. The US average is 38 inches of rain per year.
San Ramon averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 256 sunny days per year in San Ramon. The US average is 205 sunny days.
San Ramon gets some kind of precipitation, on average, 64 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 84 degrees
Winter Low: the January low is 39
Rain: averages 19 inches of rain a year
Snow: averages 0 inches of snow a year