Pleasanton, CA enjoys a Mediterranean climate with warm, dry summers and mild, wet winters. The average temperature in summer is about 25°C (77°F), while the average temperature in winter is 13°C (55°F). Rainfall is spread out evenly throughout the year, with an average of 20 inches per year. Pleasanton also experiences very little snowfall each year, usually just a few light dustings. The air quality in the area is excellent due to prevailing winds from the Pacific Ocean that help keep air pollution away from populated areas.
Pleasanton, California gets 19 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Pleasanton averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 264 sunny days per year in Pleasanton. The US average is 205 sunny days.
Pleasanton 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 85 degrees
Winter Low: the January low is 39
Rain: averages 19 inches of rain a year
Snow: averages 0 inches of snow a year