Suisun City, CA Climate


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United States / California / Vallejo Metro Area / Solano County / Suisun City / Zip Codes
Suisun City, CA has a Mediterranean climate that is characterized by warm to hot dry summers and mild to cool wet winters. The average summer temperature in Suisun City is between 68°F and 90°F (20°C to 32°C), while the winter temperatures range between 45°F and 58°F (7-14°C). Precipitation is moderate throughout the year, with an average annual rainfall of 24.3 inches (62 cm). Snowfall is rare in this region - Suisun City's last recorded snowfall was in 1976.

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

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

On average, there are 264 sunny days per year in Suisun City. The US average is 205 sunny days.

Suisun City gets some kind of precipitation, on average, 64 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 92 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 Suisun City is 8.2 (10=best), which means it is about average compared to other places in California.

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

  ClimateSuisun City, CaliforniaUnited States
  25.0 in.38.1 in.
  0.0 in.27.8 in.
  64.2 days106.2 days
  264 days205 days
  92.4°85.8°
  38.8°21.7°
  8.27
  5.14.3
  7 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 Suisun City with an average high temperature of 92.4°, which ranks it as about average compared to other places in California. In Suisun City, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Suisun City are October, May and April.
In Suisun City, there are 71.7 days annually when the high temperature is over 90°, which is hotter than most places in California.
December has the coldest nighttime temperatures for Suisun City with an average of 38.7°. This is warmer than most places in California.
In Suisun City, there are 11.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.
In Suisun City, 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 Suisun City 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 September.
December is the wettest month in Suisun City with 5.0 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 25.0 inches in Suisun City means that it is wetter than most places in California.
January is the rainiest month in Suisun City with 11.5 days of rain, and July is the driest month with only 0.0 rainy days. There are 64.2 rainy days annually in Suisun City, 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 Suisun City, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Suisun City.
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