2025 Compare Climate & Weather:
Brentwood, CA vs Rockwall, TX

Highlights

On average, there are 236 sunny days per year in Rockwall. Brentwood averages 260 sunny days per year. The US average is 205 sunny days.

Rockwall, Texas gets 40.3 inches of rain, on average, per year. Brentwood, California gets 14.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Rockwall averages 0.6 inches of snow per year. Brentwood averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Rockwall, Texas
Summer High: the July high is around 94.3 degrees
Winter Low: the January low is 33.9
Rain: averages 40.3 inches of rain a year
Snow: averages 0.6 inches of snow a year

Brentwood, California
Summer High: the July high is around 90.8 degrees
Winter Low: the January low is 39.6
Rain: averages 14.5 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Rockwall is 7.1 (10=best), which means it is about average compared to other places in Texas.

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

Today's Weather - Brentwood, CA

52°F

Today's Weather - Rockwall, TX

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Brentwood / Rockwall

July is the hottest month for Brentwood with an average high temperature of 90.8°, which ranks it as about average compared to other places in California. In Brentwood, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Brentwood are October, May and April.

August is the hottest month for Rockwall with an average high temperature of 95.5°, which ranks it as about average compared to other places in Texas. In Rockwall, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rockwall are October, April and May.

January has the coldest nighttime temperatures for Brentwood with an average of 39.6°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Rockwall with an average of 33.9°. This is colder than most places in Texas.

In Brentwood, there are 56.7 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Rockwall, there are 84.4 days annually when the high temperature is over 90°, which is cooler than most places in Texas.

In Brentwood, there are 7.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Rockwall, there are 37.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Texas.

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

January is the wettest month in Brentwood with 2.9 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 14.5 inches in Brentwood means that it is drier than most places in California.


May is the wettest month in Rockwall with 5.0 inches of rain, and the driest month is August with 1.9 inches. The wettest season is Summer with 30% of yearly precipitation and 20% occurs in Autumn, which is the driest season. The annual rainfall of 40.3 inches in Rockwall means that it is wetter than most places in Texas.

January is the rainiest month in Brentwood with 11.1 days of rain, and July is the driest month with only 0.0 rainy days. There are 56.7 rainy days annually in Brentwood, which is about average compared to other places in California. The rainiest season is Spring when it rains 54% of the time and the driest is Autumn with only a 2% chance of a rainy day.

May is the rainiest month in Rockwall with 8.7 days of rain, and July is the driest month with only 4.6 rainy days. There are 81.2 rainy days annually in Rockwall, which is rainier than most places in Texas. The rainiest season is Summer when it rains 29% of the time and the driest is Autumn with only a 20% chance of a rainy day.

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

An annual snowfall of 0.6 inches in Rockwall means that it is snowier than most places in Texas.

Any measurable snowfall is a rare occurance in Brentwood.

December is the snowiest month in Rockwall with 0.1 inches of snow, and no months of the year have significant snowfall.