Riverside County, California 

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Climate in Riverside County, California

Riverside County, California gets 11 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Riverside County averages 1 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 272 sunny days per year in Riverside County. The US average is 205 sunny days.

Riverside County gets some kind of precipitation, on average, 29 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 99 degrees
Winter Low: the January low is 40
Rain: averages 11 inches of rain a year
Snow: averages 1 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Riverside County is 8.1 (10=best), which means it is about average compared to other places in California.

8.1 / 10
April, November and October are the most pleasant months in Riverside County, while August and July are the least comfortable months.

Climate Averages
  Riverside, CaliforniaUnited States
  10.9 in.38.1 in.
  1.0 in.27.8 in.
  28.6 days106.2 days
  272 days205 days
  98.7°85.8°
  40.2°21.7°
  8.17
  5.74.3
  1849 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 Riverside County with an average high temperature of 99.1°, which ranks it as one of the hottest places in California. In Riverside County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Riverside County are April, November and March.


December has the coldest nighttime temperatures for Riverside County with an average of 39.1°. This is warmer than most places in California.


In Riverside County, there are 121.2 days annually when the high temperature is over 90°, which is one of the hottest places in California.


In Riverside County, there are 15.3 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.


In Riverside 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.


February is the wettest month in Riverside County with 2.5 inches of rain, and the driest month is June with 0.1 inches. The wettest season is Spring with 58% of yearly precipitation and 4% occurs in Autumn, which is the driest season. The annual rainfall of 10.9 inches in Riverside County means that it is drier than most places in California.


February is the rainiest month in Riverside County with 5.0 days of rain, and June is the driest month with only 0.3 rainy days. There are 28.6 rainy days annually in Riverside County, which is one of the least rainy places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 6% chance of a rainy day.


An annual snowfall of 1.0 inches in Riverside County means that it is snowier than most places in California. February is the snowiest month in Riverside County with 0.3 inches of snow, and no months of the year have significant snowfall.





CLIMATE MAP
  • Annual Rainfall (US Avg: 36.5")
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    MAPS OF RIVERSIDE COUNTY, CALIFORNIA
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