Alamo, California 

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Climate in Alamo, California

Alamo, California gets 23 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Alamo averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 262 sunny days per year in Alamo. The US average is 205 sunny days.

Alamo gets some kind of precipitation, on average, 67 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 83 degrees
Winter Low: the January low is 40
Rain: averages 23 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for Alamo is 8.5 (10=best), which means it is more comfortable than most places in California.

8.5 / 10
June, September and August are the most pleasant months in Alamo, while January and December are the least comfortable months.

Climate Averages
  Alamo, CaliforniaUnited States
  23.2 in.38.1 in.
  0.0 in.27.8 in.
  66.6 days106.2 days
  262 days205 days
  259 ft.2443 ft.


Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Alamo with an average high temperature of 83.3°, which ranks it as cooler than most places in California. In Alamo, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Alamo are June, October and September.

January has the coldest nighttime temperatures for Alamo with an average of 39.5°. This is warmer than most places in California.

In Alamo, there are 32.2 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Alamo, there are 10.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Alamo, 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 Alamo with 4.4 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 56% of yearly precipitation and 0% occurs in Autumn, which is the driest season. The annual rainfall of 23.2 inches in Alamo means that it is wetter than most places in California.

December is the rainiest month in Alamo with 11.4 days of rain, and July is the driest month with only 0.2 rainy days. There are 66.6 rainy days annually in Alamo, which is rainier than most 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 Alamo, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Alamo.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Alamo    3 Reviews
    A little bit of country near the city - 9/12/2015
    A loveey, quiet suburb with some semi-rural, horsey areas left.Being upscale, there are some Type A's and snobs but generally people say, "Hi" when walking in the... Read More

    Start Your Review of Alamo

    nothing - 4/30/2011
    who ever wrote this is... Read More

    livng in Alamo, CA - 8/31/2007
    great climate, great schools, close to everything, housing prices are extremely... Read More

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