Fairfield, CA Climate


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United States / California / Vallejo Metro Area / Solano County / Fairfield / Zip Codes
Fairfield, CA has a Mediterranean climate characterized by hot, dry summers and mild, wet winters. Summers are typically sunny and hot with temperatures reaching into the triple digits during the day and dropping to the mid-60s at night. Winters tend to be rainy and mild with temperatures usually staying in the 50s during the day. The average annual rainfall for Fairfield is around 21 inches with most of it falling during winter months.

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

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

On average, there are 258 sunny days per year in Fairfield. The US average is 205 sunny days.

Fairfield 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 90 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 Fairfield is 8.3 (10=best), which means it is more comfortable than most places in California.

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

  ClimateFairfield, CaliforniaUnited States
    Unlock38.1 in.
  0.0 in.  Unlock
    Unlock106.2 days
  258 days  Unlock
  89.8°85.8°
    Unlock21.7°
  8.3  Unlock
    Unlock4.3
  13 ft.  Unlock
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 Fairfield with an average high temperature of 89.8°, which ranks it as about average compared to other places in California. In Fairfield, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Fairfield are October, May and April.
In Fairfield, there are 59.2 days annually when the high temperature is over 90°, which is about average compared to other places in California.
December has the coldest nighttime temperatures for Fairfield with an average of 38.5°. This is about average compared to other places in California.
In Fairfield, there are 13.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.
In Fairfield, 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 Fairfield 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 Fairfield with 4.9 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 24.8 inches in Fairfield means that it is wetter than most places in California.
January is the rainiest month in Fairfield with 11.5 days of rain, and July is the driest month with only 0.0 rainy days. There are 64.7 rainy days annually in Fairfield, which is rainier than most places in California. The rainiest season is Spring when it rains 51% of the time and the driest is Autumn with only a 2% chance of a rainy day.
There is rarely any recorded snowfall in Fairfield, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Fairfield.
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Debra · Fairfield, CA
Fairfield is Dead
Over 5 years ago

I've lived here for 4 years. On the up side, housing is affordable. The downside, there is nothing to do here. The city lacks community events and an a nice downtown. We  More

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Melanie · Fairfield, CA
Housing Too Expensive
Over 10 years ago

I am finding out the cost of living here in Fairfield is way too high for my retirement. I am looking for a place where the cost of living is in line with my retirement  More

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mario · Fairfield, CA
good
Over 14 years ago

good  More

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