Orange County, California 

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Climate in Orange County, California

Orange, CA County has a Mediterranean climate, characterized by warm to hot summers and mild to cool winters. The temperatures can range from the low 40s in the wintertime to the mid-90s during the summer months. The area is known for its consistently sunny days, with an average of 284 days of sunshine annually. Average precipitation in Orange County typically varies between 12 and 15 inches per year. Throughout the spring and fall months, it’s not uncommon to see scattered showers or thunderstorms in the area.

Orange County, California gets 14 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 278 sunny days per year in Orange County. The US average is 205 sunny days.

Orange County gets some kind of precipitation, on average, 35 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 46
Rain: averages 14 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for Orange County is 9.2 (10=best), which means it is one of the most pleasant places in California.

9.6 / 8.7

Summer   /   Winter
June, May and October are the most pleasant months in Orange County, while December and January are the least comfortable months.

Climate Averages
  Orange, CaliforniaUnited States
  13.5 in.38.1 in.
  0.0 in.27.8 in.
  35.3 days106.2 days
  278 days205 days
  685 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.

August is the hottest month for Orange County with an average high temperature of 84.9°, which ranks it as cooler than most places in California. In Orange County, there are 8 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Orange County are June, October and May.

In Orange County, there are 27.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

December has the coldest nighttime temperatures for Orange County with an average of 45.0°. This is one of the warmest places in California.

In Orange County, there are 1.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Orange County, 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 Orange County 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.

February is the wettest month in Orange County with 3.2 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 60% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 13.5 inches in Orange County means that it is drier than most places in California.

February is the rainiest month in Orange County with 6.4 days of rain, and July is the driest month with only 0.4 rainy days. There are 35.3 rainy days annually in Orange County, which is less rainy 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 4% chance of a rainy day.

There is rarely any recorded snowfall in Orange County, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Orange County.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Orange    1 Reviews
    Born & Raised In The OC - 2/2/2017
    Wonderful place to grow up. The beach is amazing. I think it's starting to get too pretentious and money-centric but I'll always love it cause it's my... Read More

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