Livermore, CA has a Mediterranean climate characterized by warm dry summers and cool wet winters. Average high temperatures range from the mid 50s in winter to the mid 80s in summer, while average low temperatures range from the mid 30s to the upper 50s. Rainfall in Livermore averages about 15 inches per year, with most of it coming during the winter months. Temperatures typically remain mild year-round due to its location on the east side of California's Central Valley. Summers tend to be sunny and dry, with occasional breezes from the nearby mountains providing some relief from the heat. Winters are typically wetter and cooler than those found elsewhere in California, often dropping below freezing at night. Snow is rare but not unheard of once or twice a year.
Livermore, California gets 18 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Livermore averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 257 sunny days per year in Livermore. The US average is 205 sunny days.
Livermore 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 89 degrees
Winter Low: the January low is 39
Rain: averages 18 inches of rain a year
Snow: averages 0 inches of snow a year