2025 Compare Climate & Weather:
La Mesa, CA vs Cottonwood, AZ

Highlights

On average, there are 275 sunny days per year in Cottonwood. La Mesa averages 261 sunny days per year. The US average is 205 sunny days.

Cottonwood, Arizona gets 14 inches of rain, on average, per year. La Mesa, California gets 12.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Cottonwood averages 1.1 inches of snow per year. La Mesa averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Cottonwood, Arizona
Summer High: the July high is around 100.3 degrees
Winter Low: the January low is 27.7
Rain: averages 14 inches of rain a year
Snow: averages 1.1 inches of snow a year

La Mesa, California
Summer High: the July high is around 83.9 degrees
Winter Low: the January low is 44.6
Rain: averages 12.1 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for La Mesa is 9.2 (10=best), which means it is one of the most pleasant places in California.

Today's Weather - La Mesa, CA

61°F

Today's Weather - Cottonwood, AZ

72°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: La Mesa / Cottonwood

August is the hottest month for La Mesa with an average high temperature of 85.6°, which ranks it as cooler than most places in California. In La Mesa, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for La Mesa are June, October and May.

July is the hottest month for Cottonwood with an average high temperature of 100.3°, which ranks it as warmer than most places in Arizona. In Cottonwood, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Cottonwood are April, October and March.

December has the coldest nighttime temperatures for La Mesa with an average of 43.8°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Cottonwood with an average of 27.1°. This is colder than most places in Arizona.

In La Mesa, there are 28.7 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Cottonwood, there are 123.1 days annually when the high temperature is over 90°, which is about average compared to other places in Arizona.

In La Mesa, there are 1.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Cottonwood, there are 87.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Arizona.

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

February is the wettest month in La Mesa with 2.5 inches of rain, and the driest month is August with 0.0 inches. The wettest season is Spring with 53% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 12.1 inches in La Mesa means that it is drier than most places in California.


August is the wettest month in Cottonwood with 2.1 inches of rain, and the driest month is June with 0.2 inches. The wettest season is Autumn with 29% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 14.0 inches in Cottonwood means that it is wetter than most places in Arizona.

February is the rainiest month in La Mesa with 6.3 days of rain, and August is the driest month with only 0.4 rainy days. There are 36.9 rainy days annually in La Mesa, which is less rainy than most places in California. The rainiest season is Spring when it rains 47% of the time and the driest is Autumn with only a 5% chance of a rainy day.

August is the rainiest month in Cottonwood with 7.9 days of rain, and June is the driest month with only 1.2 rainy days. There are 52.1 rainy days annually in Cottonwood, which is rainier than most places in Arizona. The rainiest season is Autumn when it rains 30% of the time and the driest is Summer with only a 21% chance of a rainy day.

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

An annual snowfall of 1.1 inches in Cottonwood means that it is about average compared to other places in Arizona.

Any measurable snowfall is a rare occurance in La Mesa.

February is the snowiest month in Cottonwood with 0.4 inches of snow, and no months of the year have significant snowfall.