2025 Compare Climate & Weather:
Highland, CA vs Rialto, CA

Highlights

On average, there are 282 sunny days per year in Rialto. Highland averages 283 sunny days per year. The US average is 205 sunny days.

Rialto, California gets 14.4 inches of rain, on average, per year. Highland, California gets 13.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Rialto averages 0 inches of snow per year. Highland averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Rialto, California
Summer High: the July high is around 94.9 degrees
Winter Low: the January low is 41.9
Rain: averages 14.4 inches of rain a year
Snow: averages 0 inches of snow a year

Highland, California
Summer High: the July high is around 94.9 degrees
Winter Low: the January low is 41.7
Rain: averages 13.4 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Rialto is 8.6 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Highland is 8.5 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Highland, CA

56°F

Today's Weather - Rialto, CA

56°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Highland / Rialto

August is the hottest month for Highland with an average high temperature of 96.0°, which ranks it as warmer than most places in California. In Highland, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Highland are April, May and November.

August is the hottest month for Rialto with an average high temperature of 96.0°, which ranks it as warmer than most places in California. In Rialto, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rialto are April, May and November.

December has the coldest nighttime temperatures for Highland with an average of 40.8°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Rialto with an average of 40.9°. This is warmer than most places in California.

In Highland, there are 102.9 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Rialto, there are 102.2 days annually when the high temperature is over 90°, which is hotter than most places in California.

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

In Rialto, there are 3.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Highland, 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 Rialto, 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 Highland with 3.2 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 59% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 13.4 inches in Highland means that it is drier than most places in California.


February is the wettest month in Rialto with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 59% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 14.4 inches in Rialto means that it is drier than most places in California.

February is the rainiest month in Highland with 7.1 days of rain, and August is the driest month with only 0.6 rainy days. There are 40.1 rainy days annually in Highland, which is less rainy than most places in California. The rainiest season is Spring when it rains 46% of the time and the driest is Autumn with only a 5% chance of a rainy day.

February is the rainiest month in Rialto with 7.1 days of rain, and August is the driest month with only 0.6 rainy days. There are 40.1 rainy days annually in Rialto, which is less rainy than most places in California. The rainiest season is Spring when it rains 46% of the time and the driest is Autumn with only a 5% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Highland.

Any measurable snowfall is a rare occurance in Rialto.