2025 Compare Climate & Weather:
Castaic, CA vs Santa Clarita, CA

Highlights

On average, there are 280 sunny days per year in Santa Clarita. Castaic averages 283 sunny days per year. The US average is 205 sunny days.

Santa Clarita, California gets 18.4 inches of rain, on average, per year. Castaic, California gets 18.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Santa Clarita averages 0 inches of snow per year. Castaic averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Santa Clarita, California
Summer High: the July high is around 89.3 degrees
Winter Low: the January low is 46.2
Rain: averages 18.4 inches of rain a year
Snow: averages 0 inches of snow a year

Castaic, California
Summer High: the July high is around 89.8 degrees
Winter Low: the January low is 46.1
Rain: averages 18.4 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Santa Clarita is 8.9 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Castaic is 8.9 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Castaic, CA

50°F

Today's Weather - Santa Clarita, CA

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Castaic / Santa Clarita

August is the hottest month for Castaic with an average high temperature of 91.4°, which ranks it as about average compared to other places in California. In Castaic, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Castaic are May, October and June.

August is the hottest month for Santa Clarita with an average high temperature of 91.0°, which ranks it as about average compared to other places in California. In Santa Clarita, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Santa Clarita are May, October and June.

December has the coldest nighttime temperatures for Castaic with an average of 45.8°. This is one of the warmest places in California.

December has the coldest nighttime temperatures for Santa Clarita with an average of 45.8°. This is one of the warmest places in California.

In Castaic, there are 63.4 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Santa Clarita, there are 60.6 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Castaic, there are 0.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

In Santa Clarita, there are 1.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Castaic, 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 Santa Clarita, 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 Castaic with 4.4 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 18.4 inches in Castaic means that it is about average compared to other places in California.


February is the wettest month in Santa Clarita with 4.4 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 18.4 inches in Santa Clarita means that it is about average compared to other places in California.

February is the rainiest month in Castaic with 6.4 days of rain, and July is the driest month with only 0.3 rainy days. There are 34.1 rainy days annually in Castaic, which is less rainy than most places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 4% chance of a rainy day.

February is the rainiest month in Santa Clarita with 6.3 days of rain, and July is the driest month with only 0.3 rainy days. There are 34.1 rainy days annually in Santa Clarita, which is less rainy than most places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 4% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Castaic.

Any measurable snowfall is a rare occurance in Santa Clarita.