Sonoma, CA Climate


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Sonoma, CA is located in the heart of Wine Country, and enjoys a Mediterranean climate. It has mild temperatures year-round with minimal rain in the summer months. Winters tend to be mild and wet, with average temperatures ranging from the low 40s to mid 60s. Summers are usually sunny and warm, with temperatures typically reaching highs in the upper 70s and low 80s. The area experiences little snowfall, however foggy days are common throughout the winter months.

Sonoma, California gets 31 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sonoma 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 Sonoma. The US average is 205 sunny days.

Sonoma gets some kind of precipitation, on average, 72 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 38
Rain: averages 31 inches of rain a year
Snow: averages 0 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Sonoma is 8.4 (10=best), which means it is more comfortable than most places in California.

9.3 Summer - 7.2 Winter
June, July and September are the most pleasant months in Sonoma, while January and December are the least comfortable months.

  ClimateSonoma, CaliforniaUnited States
  30.7 in.38.1 in.
  0.0 in.27.8 in.
  71.7 days106.2 days
  262 days205 days
  85.1°85.8°
  37.9°21.7°
  8.47
  4.94.3
  85 ft.2443 ft.
Climate
YOU SHOULD KNOW

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.

August is the hottest month for Sonoma with an average high temperature of 85.1°, which ranks it as cooler than most places in California. In Sonoma, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sonoma are October, May and June.
In Sonoma, there are 31.9 days annually when the high temperature is over 90°, which is cooler than most places in California.
December has the coldest nighttime temperatures for Sonoma with an average of 37.5°. This is about average compared to other places in California.
In Sonoma, there are 19.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.
In Sonoma, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.
Humidity in Sonoma is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.
December is the wettest month in Sonoma with 6.0 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 30.7 inches in Sonoma means that it is wetter than most places in California.
December is the rainiest month in Sonoma with 12.0 days of rain, and July is the driest month with only 0.1 rainy days. There are 71.7 rainy days annually in Sonoma, which is rainier than most places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 2% chance of a rainy day.
There is rarely any recorded snowfall in Sonoma, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Sonoma.
Reviews for Sonoma
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Over 11 years ago

I love Sonoma. Moved here from Texas and I can't wait to live in this small town with country living all around. I hate all the drama and crime in Vallejo. I live in  More

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I have lived in Sonoma for 3 years now. I relocated after a brief stint in Salt Lake City but lived in San Francisco for 30 years before that. If you like small town  More

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The best aspects of living in Sonoma County,CA: Air quality is best that one can ask for and there is no severe weather. No hazardous weather driving or walking  More

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