2025 Compare Climate & Weather:
McAllen, TX vs San Diego, CA

Highlights

On average, there are 266 sunny days per year in San Diego. McAllen averages 223 sunny days per year. The US average is 205 sunny days.

San Diego, California gets 11.7 inches of rain, on average, per year. McAllen, Texas gets 21.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

San Diego averages 0 inches of snow per year. McAllen averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

San Diego, California
Summer High: the July high is around 78.5 degrees
Winter Low: the January low is 45.6
Rain: averages 11.7 inches of rain a year
Snow: averages 0 inches of snow a year

McAllen, Texas
Summer High: the July high is around 96.6 degrees
Winter Low: the January low is 49.4
Rain: averages 21.8 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for McAllen is 6.2 (10=best), which means it is one of the least comfortable places in Texas.

Today's Weather - McAllen, TX

77°F

Today's Weather - San Diego, CA

57°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: McAllen / San Diego

August is the hottest month for McAllen with an average high temperature of 97.5°, which ranks it as warmer than most places in Texas. In McAllen, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for McAllen are November, March and February.

August is the hottest month for San Diego with an average high temperature of 80.2°, which ranks it as cooler than most places in California. In San Diego, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Diego are July, September and August.

January has the coldest nighttime temperatures for McAllen with an average of 49.4°. This is one of the warmest places in Texas.

December has the coldest nighttime temperatures for San Diego with an average of 45.3°. This is one of the warmest places in California.

In McAllen, there are 152.4 days annually when the high temperature is over 90°, which is one of the hottest places in Texas.

In San Diego, there are 13.4 days annually when the high temperature is over 90°, which is cooler than most places in California.

In McAllen, there are 1.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Texas.

In San Diego, there are 0.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.

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

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

September is the wettest month in McAllen with 4.0 inches of rain, and the driest month is March with 1.0 inches. The wettest season is Winter with 33% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 21.8 inches in McAllen means that it is drier than most places in Texas.


February is the wettest month in San Diego with 2.5 inches of rain, and the driest month is August with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 11.7 inches in San Diego means that it is drier than most places in California.

September is the rainiest month in McAllen with 6.5 days of rain, and March is the driest month with only 3.5 rainy days. There are 58.0 rainy days annually in McAllen, which is less rainy than most places in Texas. The rainiest season is Spring when it rains 29% of the time and the driest is Summer with only a 21% chance of a rainy day.

February is the rainiest month in San Diego with 6.8 days of rain, and August is the driest month with only 0.4 rainy days. There are 38.4 rainy days annually in San Diego, which is less rainy than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 4% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in McAllen.

Any measurable snowfall is a rare occurance in San Diego.