Los Altos, CA has a Mediterranean climate characterized by warm summers and typically mild winters. During the summer months, temperatures average in the mid to high 70s°F during the day and can drop into the low 50s°F at night. During winter, temperatures are generally in the mid 50s°F during the day with lows dipping into the mid to low 40s°F overnight. Rainfall is spread out over most of the year, but peaks in December and January. The area receives around 19 inches of rain annually, most of which falls between November and April.
Los Altos, California gets 19 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Los Altos averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 263 sunny days per year in Los Altos. The US average is 205 sunny days.
Los Altos gets some kind of precipitation, on average, 61 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 81 degrees
Winter Low: the January low is 40
Rain: averages 19 inches of rain a year
Snow: averages 0 inches of snow a year