2025 Compare Climate & Weather:
Ontario, CA vs California City, CA

Highlights

On average, there are 271 sunny days per year in California City. Ontario averages 279 sunny days per year. The US average is 205 sunny days.

California City, California gets 6.4 inches of rain, on average, per year. Ontario, California gets 15.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

California City averages 1.3 inches of snow per year. Ontario averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

California City, California
Summer High: the July high is around 98.3 degrees
Winter Low: the January low is 31.3
Rain: averages 6.4 inches of rain a year
Snow: averages 1.3 inches of snow a year

Ontario, California
Summer High: the July high is around 91.9 degrees
Winter Low: the January low is 42.6
Rain: averages 15.7 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for California City is 8.0 (10=best), which means it is less comfortable than most places in California.

The annual BestPlaces Comfort Index for Ontario is 8.8 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Ontario, CA

85°F

Today's Weather - California City, CA

85°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Ontario / California City

August is the hottest month for Ontario with an average high temperature of 93.4°, which ranks it as warmer than most places in California. In Ontario, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ontario are May, October and April.

July is the hottest month for California City with an average high temperature of 98.3°, which ranks it as one of the hottest places in California. In California City, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for California City are October, April and May.

December has the coldest nighttime temperatures for Ontario with an average of 41.4°. This is warmer than most places in California.

December has the coldest nighttime temperatures for California City with an average of 30.6°. This is colder than most places in California.

In Ontario, there are 79.5 days annually when the high temperature is over 90°, which is hotter than most places in California.

In California City, there are 106.5 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Ontario, there are 3.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In California City, there are 58.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Ontario, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

In California 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.

February is the wettest month in Ontario with 3.8 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 15.7 inches in Ontario means that it is drier than most places in California.


February is the wettest month in California City with 1.5 inches of rain, and the driest month is June with 0.0 inches. The wettest season is Spring with 59% of yearly precipitation and 6% occurs in Autumn, which is the driest season. The annual rainfall of 6.4 inches in California City means that it is one of the driest places in California.

February is the rainiest month in Ontario with 5.7 days of rain, and July is the driest month with only 0.2 rainy days. There are 30.5 rainy days annually in Ontario, which is one of the least rainy 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.

February is the rainiest month in California City with 4.3 days of rain, and June is the driest month with only 0.3 rainy days. There are 23.3 rainy days annually in California City, which is one of the least rainy places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 7% chance of a rainy day.

There is rarely any recorded snowfall in Ontario, ranking it as one of the least snowy places in California.

An annual snowfall of 1.3 inches in California City means that it is snowier than most places in California.

Any measurable snowfall is a rare occurance in Ontario.

December is the snowiest month in California City with 0.6 inches of snow, and 1 month of the year have significant snowfall.