2025 Compare Climate & Weather:
Altadena, CA vs Kensington, CA

Highlights

On average, there are 263 sunny days per year in Kensington. Altadena averages 287 sunny days per year. The US average is 205 sunny days.

Kensington, California gets 26.1 inches of rain, on average, per year. Altadena, California gets 22.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Kensington averages 0 inches of snow per year. Altadena averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Kensington, California
Summer High: the July high is around 72.4 degrees
Winter Low: the January low is 43
Rain: averages 26.1 inches of rain a year
Snow: averages 0 inches of snow a year

Altadena, California
Summer High: the July high is around 86.4 degrees
Winter Low: the January low is 46.7
Rain: averages 22.5 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

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

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

Today's Weather - Altadena, CA

85°F

Today's Weather - Kensington, CA

64°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Altadena / Kensington

August is the hottest month for Altadena with an average high temperature of 88.1°, which ranks it as about average compared to other places in California. In Altadena, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Altadena are May, October and June.

September is the hottest month for Kensington with an average high temperature of 74.4°, which ranks it as one of the coolest places in California. In Kensington, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Kensington are September, August and July.

December has the coldest nighttime temperatures for Altadena with an average of 45.9°. This is one of the warmest places in California.

January has the coldest nighttime temperatures for Kensington with an average of 43.0°. This is warmer than most places in California.

In Altadena, there are 44.2 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Kensington, there are 4.3 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Altadena, there are 0.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

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

In Altadena, 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 Kensington, 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 Altadena with 5.5 inches of rain, and the driest month is July with 0.1 inches. The wettest season is Spring with 59% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 22.5 inches in Altadena means that it is wetter than most places in California.


February is the wettest month in Kensington with 5.0 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 56% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 26.1 inches in Kensington means that it is wetter than most places in California.

February is the rainiest month in Altadena with 6.4 days of rain, and July is the driest month with only 0.4 rainy days. There are 37.4 rainy days annually in Altadena, 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.

January is the rainiest month in Kensington with 11.2 days of rain, and July is the driest month with only 0.2 rainy days. There are 66.6 rainy days annually in Kensington, which is rainier 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 3% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Altadena.

Any measurable snowfall is a rare occurance in Kensington.