2025 Compare Climate & Weather:
El Sobrante (Contra Costa County), CA vs Rocklin, CA

Highlights

On average, there are 255 sunny days per year in Rocklin. El Sobrante (Contra Costa County) averages 258 sunny days per year. The US average is 205 sunny days.

Rocklin, California gets 20.8 inches of rain, on average, per year. El Sobrante (Contra Costa County), California gets 24.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Rocklin averages 0 inches of snow per year. El Sobrante (Contra Costa County) averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Rocklin, California
Summer High: the July high is around 94 degrees
Winter Low: the January low is 39
Rain: averages 20.8 inches of rain a year
Snow: averages 0 inches of snow a year

El Sobrante (Contra Costa County), California
Summer High: the July high is around 77.6 degrees
Winter Low: the January low is 40.3
Rain: averages 24.1 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Rocklin is 8.2 (10=best), which means it is about average compared to other places in California.

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

Today's Weather - El Sobrante (Contra Costa County), CA

66°F

Today's Weather - Rocklin, CA

73°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: El Sobrante (Contra Costa County) / Rocklin

August is the hottest month for El Sobrante (Contra Costa County) with an average high temperature of 77.8°, which ranks it as cooler than most places in California. In El Sobrante (Contra Costa County), there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for El Sobrante (Contra Costa County) are August, September and July.

July is the hottest month for Rocklin with an average high temperature of 94.0°, which ranks it as warmer than most places in California. In Rocklin, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rocklin are October, May and April.

January has the coldest nighttime temperatures for El Sobrante (Contra Costa County) with an average of 40.3°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Rocklin with an average of 38.9°. This is warmer than most places in California.

In El Sobrante (Contra Costa County), there are 16.9 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Rocklin, there are 77.8 days annually when the high temperature is over 90°, which is hotter than most places in California.

In El Sobrante (Contra Costa County), there are 8.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Rocklin, there are 10.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In El Sobrante (Contra Costa 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.

In Rocklin, 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 El Sobrante (Contra Costa County) with 4.7 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 24.1 inches in El Sobrante (Contra Costa County) means that it is wetter than most places in California.


January is the wettest month in Rocklin with 4.0 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 54% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 20.8 inches in Rocklin means that it is about average compared to other places in California.

January is the rainiest month in El Sobrante (Contra Costa County) with 11.2 days of rain, and July is the driest month with only 0.2 rainy days. There are 64.1 rainy days annually in El Sobrante (Contra Costa County), which is rainier than most places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 2% chance of a rainy day.

January is the rainiest month in Rocklin with 10.6 days of rain, and July is the driest month with only 0.1 rainy days. There are 60.0 rainy days annually in Rocklin, which is about average compared to other places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 3% chance of a rainy day.

There is rarely any recorded snowfall in El Sobrante (Contra Costa County), ranking it as one of the least snowy places in California.

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

Any measurable snowfall is a rare occurance in El Sobrante (Contra Costa County).

Any measurable snowfall is a rare occurance in Rocklin.