2025 Compare Climate & Weather:
Catalina, AZ vs Pleasanton, CA

Highlights

On average, there are 264 sunny days per year in Pleasanton. Catalina averages 286 sunny days per year. The US average is 205 sunny days.

Pleasanton, California gets 18.7 inches of rain, on average, per year. Catalina, Arizona gets 14.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Pleasanton averages 0 inches of snow per year. Catalina averages 1.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Pleasanton, California
Summer High: the July high is around 85.4 degrees
Winter Low: the January low is 39.3
Rain: averages 18.7 inches of rain a year
Snow: averages 0 inches of snow a year

Catalina, Arizona
Summer High: the July high is around 99.6 degrees
Winter Low: the January low is 34.3
Rain: averages 14.3 inches of rain a year
Snow: averages 1.3 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Catalina is 7.6 (10=best), which means it is about average compared to other places in Arizona.

Today's Weather - Catalina, AZ

70°F

Today's Weather - Pleasanton, CA

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Catalina / Pleasanton

June is the hottest month for Catalina with an average high temperature of 100.1°, which ranks it as about average compared to other places in Arizona. In Catalina, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Catalina are November, April and March.

August is the hottest month for Pleasanton with an average high temperature of 85.4°, which ranks it as cooler than most places in California. In Pleasanton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Pleasanton are June, October and May.

December has the coldest nighttime temperatures for Catalina with an average of 32.8°. This is about average compared to other places in Arizona.

January has the coldest nighttime temperatures for Pleasanton with an average of 39.3°. This is warmer than most places in California.

In Catalina, there are 140.6 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Pleasanton, there are 36.0 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Catalina, there are 52.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Arizona.

In Pleasanton, there are 11.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

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

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

August is the wettest month in Catalina with 2.8 inches of rain, and the driest month is June with 0.3 inches. The wettest season is Autumn with 41% of yearly precipitation and 13% occurs in Summer, which is the driest season. The annual rainfall of 14.3 inches in Catalina means that it is wetter than most places in Arizona.


February is the wettest month in Pleasanton with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 18.7 inches in Pleasanton means that it is about average compared to other places in California.

August is the rainiest month in Catalina with 9.7 days of rain, and June is the driest month with only 1.8 rainy days. There are 53.4 rainy days annually in Catalina, which is rainier than most places in Arizona. The rainiest season is Autumn when it rains 38% of the time and the driest is Summer with only a 16% chance of a rainy day.

December is the rainiest month in Pleasanton with 11.0 days of rain, and July is the driest month with only 0.2 rainy days. There are 64.0 rainy days annually in Pleasanton, 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.

An annual snowfall of 1.3 inches in Catalina means that it is about average compared to other places in Arizona.

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

January is the snowiest month in Catalina with 0.5 inches of snow, and 1 month of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Pleasanton.