2025 Compare Climate & Weather:
Aliso Viejo, CA vs Riverside, CA

Highlights

On average, there are 277 sunny days per year in Riverside. Aliso Viejo averages 281 sunny days per year. The US average is 205 sunny days.

Riverside, California gets 11.3 inches of rain, on average, per year. Aliso Viejo, California gets 14.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Riverside averages 0 inches of snow per year. Aliso Viejo averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Riverside, California
Summer High: the July high is around 94.2 degrees
Winter Low: the January low is 42.4
Rain: averages 11.3 inches of rain a year
Snow: averages 0 inches of snow a year

Aliso Viejo, California
Summer High: the July high is around 84.4 degrees
Winter Low: the January low is 43.3
Rain: averages 14.2 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Riverside is 8.7 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Aliso Viejo is 9.1 (10=best), which means it is one of the most pleasant places in California.

Today's Weather - Aliso Viejo, CA

86°F

Today's Weather - Riverside, CA

100°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Aliso Viejo / Riverside

August is the hottest month for Aliso Viejo with an average high temperature of 86.3°, which ranks it as cooler than most places in California. In Aliso Viejo, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Aliso Viejo are October, June and May.

August is the hottest month for Riverside with an average high temperature of 95.4°, which ranks it as warmer than most places in California. In Riverside, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Riverside are April, May and November.

December has the coldest nighttime temperatures for Aliso Viejo with an average of 42.3°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Riverside with an average of 41.3°. This is warmer than most places in California.

In Aliso Viejo, there are 33.8 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Riverside, there are 95.9 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Aliso Viejo, there are 6.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Riverside, there are 4.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Aliso Viejo, 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 Riverside, 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 Aliso Viejo with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 61% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 14.2 inches in Aliso Viejo means that it is drier than most places in California.


February is the wettest month in Riverside with 2.7 inches of rain, and the driest month is June with 0.1 inches. The wettest season is Spring with 59% of yearly precipitation and 3% occurs in Autumn, which is the driest season. The annual rainfall of 11.3 inches in Riverside means that it is drier than most places in California.

February is the rainiest month in Aliso Viejo with 6.3 days of rain, and July is the driest month with only 0.5 rainy days. There are 36.9 rainy days annually in Aliso Viejo, which is less rainy than most places in California. The rainiest season is Spring when it rains 47% of the time and the driest is Autumn with only a 5% chance of a rainy day.

February is the rainiest month in Riverside with 6.2 days of rain, and August is the driest month with only 0.4 rainy days. There are 34.0 rainy days annually in Riverside, which is less rainy than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 5% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Aliso Viejo.

Any measurable snowfall is a rare occurance in Riverside.