2025 Compare Climate & Weather:
Grand Junction, CO vs San Antonio, TX

Highlights

On average, there are 220 sunny days per year in San Antonio. Grand Junction averages 245 sunny days per year. The US average is 205 sunny days.

San Antonio, Texas gets 32.8 inches of rain, on average, per year. Grand Junction, Colorado gets 9.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

San Antonio averages 0.2 inches of snow per year. Grand Junction averages 15.8 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

San Antonio, Texas
Summer High: the July high is around 94.2 degrees
Winter Low: the January low is 40.5
Rain: averages 32.8 inches of rain a year
Snow: averages 0.2 inches of snow a year

Grand Junction, Colorado
Summer High: the July high is around 92.8 degrees
Winter Low: the January low is 17.8
Rain: averages 9.9 inches of rain a year
Snow: averages 15.8 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for San Antonio is 7.0 (10=best), which means it is about average compared to other places in Texas.

The annual BestPlaces Comfort Index for Grand Junction is 7.4 (10=best), which means it is one of the most pleasant places in Colorado.

Today's Weather - Grand Junction, CO

52°F

Today's Weather - San Antonio, TX

75°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Grand Junction / San Antonio

July is the hottest month for Grand Junction with an average high temperature of 92.8°, which ranks it as one of the hottest places in Colorado. In Grand Junction, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grand Junction are May, September and June.

August is the hottest month for San Antonio with an average high temperature of 95.7°, which ranks it as warmer than most places in Texas. In San Antonio, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Antonio are April, October and March.

January has the coldest nighttime temperatures for Grand Junction with an average of 17.8°. This is warmer than most places in Colorado.

January has the coldest nighttime temperatures for San Antonio with an average of 40.5°. This is warmer than most places in Texas.

In Grand Junction, there are 54.9 days annually when the high temperature is over 90°, which is one of the hottest places in Colorado.

In San Antonio, there are 105.8 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

In Grand Junction, there are 130.1 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Colorado.

In San Antonio, there are 16.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Texas.

In Grand Junction, there are 2.1 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Colorado.

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

September is the wettest month in Grand Junction with 1.2 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Winter with 32% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 9.9 inches in Grand Junction means that it is one of the driest places in Colorado.


October is the wettest month in San Antonio with 4.2 inches of rain, and the driest month is January with 1.9 inches. The wettest season is Winter with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 32.8 inches in San Antonio means that it is about average compared to other places in Texas.

April is the rainiest month in Grand Junction with 6.9 days of rain, and June is the driest month with only 3.8 rainy days. There are 68.9 rainy days annually in Grand Junction, which is less rainy than most places in Colorado. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 22% chance of a rainy day.

March is the rainiest month in San Antonio with 9.0 days of rain, and August is the driest month with only 4.5 rainy days. There are 82.5 rainy days annually in San Antonio, which is rainier than most places in Texas. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 21% chance of a rainy day.

An annual snowfall of 15.8 inches in Grand Junction means that it is one of the least snowy places in Colorado.

An annual snowfall of 0.2 inches in San Antonio means that it is about average compared to other places in Texas.

December is the snowiest month in Grand Junction with 4.3 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in San Antonio with 0.2 inches of snow, and no months of the year have significant snowfall.