Vacaville, CA Climate


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United States / California / Vallejo Metro Area / Solano County / Vacaville / Zip Codes
Vacaville, CA has a mild Mediterranean climate with hot, dry summers and cool, wet winters. Summers are characterized by long days of sunshine and temperatures rarely exceeding 90 degrees Fahrenheit while winters are typically mild with occasional rain showers and temperatures hovering between 35-50 degrees Fahrenheit. The city also experiences an average of 13 inches of rainfall annually. All in all, Vacaville is known for its pleasant weather year-round, making it an ideal place to visit or live.

Vacaville, California gets 25 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 260 sunny days per year in Vacaville. The US average is 205 sunny days.

Vacaville gets some kind of precipitation, on average, 65 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 93 degrees
Winter Low: the January low is 39
Rain: averages 25 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Vacaville is 8.2 (10=best), which means it is about average compared to other places in California.

8.2 Summer - 7.2 Winter
May, October and June are the most pleasant months in Vacaville, while January and December are the least comfortable months.

  ClimateVacaville, CaliforniaUnited States
  25.2 in.38.1 in.
  0.0 in.27.8 in.
  64.5 days106.2 days
  260 days205 days
  93.4°85.8°
  38.7°21.7°
  8.27
  5.14.3
  174 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.

July is the hottest month for Vacaville with an average high temperature of 93.4°, which ranks it as warmer than most places in California. In Vacaville, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Vacaville are October, May and April.
In Vacaville, there are 77.5 days annually when the high temperature is over 90°, which is hotter than most places in California.
December has the coldest nighttime temperatures for Vacaville with an average of 38.6°. This is about average compared to other places in California.
In Vacaville, there are 11.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.
In Vacaville, 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 Vacaville 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.
January is the wettest month in Vacaville with 5.1 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 60% of yearly precipitation and 0% occurs in Autumn, which is the driest season. The annual rainfall of 25.2 inches in Vacaville means that it is wetter than most places in California.
January is the rainiest month in Vacaville with 12.0 days of rain, and July is the driest month with only 0.0 rainy days. There are 64.5 rainy days annually in Vacaville, which is rainier than most places in California. The rainiest season is Spring when it rains 52% of the time and the driest is Autumn with only a 2% chance of a rainy day.
There is rarely any recorded snowfall in Vacaville, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Vacaville.
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Layla · Vacaville, CA
Depends on your perspective.
Over 5 years ago

I am a former Bay Area resident who moved to Vacaville to escape the ridiculous cost of living in the Bay. Now, if you are coming from the Bay, this place can seem more  More

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Daniela · Vacaville, CA
Boring and hot
Over 5 years ago

It’s not a bad or dangerous place to live but I believe it doesn’t deserve the 5 stars most people are giving it. I have no idea where these people lived before moving  More

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Jean · Vacaville, CA
It's not a cultural or intellectual hub
Over 14 years ago

If you enjoy a sophisticated urban environment, if you're single, if you're highly educated and appreciate access to continuing higher education at the post-graduate  More

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