2025 Compare Climate & Weather:
Palo Alto, CA vs Los Altos, CA

Highlights

On average, there are 263 sunny days per year in Los Altos. Palo Alto averages 261 sunny days per year. The US average is 205 sunny days.

Los Altos, California gets 18.8 inches of rain, on average, per year. Palo Alto, California gets 17.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Los Altos averages 0 inches of snow per year. Palo Alto averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Los Altos, California
Summer High: the July high is around 80.9 degrees
Winter Low: the January low is 39.9
Rain: averages 18.8 inches of rain a year
Snow: averages 0 inches of snow a year

Palo Alto, California
Summer High: the July high is around 79.8 degrees
Winter Low: the January low is 40.5
Rain: averages 17.3 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Los Altos is 8.7 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Palo Alto is 8.8 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Palo Alto, CA

56°F

Today's Weather - Los Altos, CA

56°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Palo Alto / Los Altos

July is the hottest month for Palo Alto with an average high temperature of 79.8°, which ranks it as cooler than most places in California. In Palo Alto, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Palo Alto are June, September and August.

July is the hottest month for Los Altos with an average high temperature of 80.9°, which ranks it as cooler than most places in California. In Los Altos, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Los Altos are June, September and August.

December has the coldest nighttime temperatures for Palo Alto with an average of 40.2°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Los Altos with an average of 39.7°. This is warmer than most places in California.

In Palo Alto, there are 13.0 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Los Altos, there are 17.6 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Palo Alto, there are 7.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Los Altos, there are 10.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Palo Alto, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

In Los Altos, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

February is the wettest month in Palo Alto with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 58% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 17.3 inches in Palo Alto means that it is about average compared to other places in California.


February is the wettest month in Los Altos with 3.9 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 58% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 18.8 inches in Los Altos means that it is about average compared to other places in California.

January is the rainiest month in Palo Alto with 10.2 days of rain, and July is the driest month with only 0.1 rainy days. There are 60.6 rainy days annually in Palo Alto, which is about average compared to other places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 2% chance of a rainy day.

January is the rainiest month in Los Altos with 10.4 days of rain, and July is the driest month with only 0.1 rainy days. There are 60.9 rainy days annually in Los Altos, which is about average compared to other places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 2% chance of a rainy day.

There is rarely any recorded snowfall in Palo Alto, ranking it as one of the least snowy places in California.

There is rarely any recorded snowfall in Los Altos, ranking it as one of the least snowy places in California.

Any measurable snowfall is a rare occurance in Palo Alto.

Any measurable snowfall is a rare occurance in Los Altos.