2025 Compare Climate & Weather:
Grand Junction, CO vs Los Alamos, NM

Highlights

On average, there are 276 sunny days per year in Los Alamos. Grand Junction averages 245 sunny days per year. The US average is 205 sunny days.

Los Alamos, New Mexico gets 16.4 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.

Los Alamos averages 38.5 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

Los Alamos, New Mexico
Summer High: the July high is around 83.8 degrees
Winter Low: the January low is 18.6
Rain: averages 16.4 inches of rain a year
Snow: averages 38.5 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 Los Alamos is 7.4 (10=best), which means it is less comfortable than most places in New Mexico.

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

70°F

Today's Weather - Los Alamos, NM

50°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Grand Junction / Los Alamos

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.

July is the hottest month for Los Alamos with an average high temperature of 83.8°, which ranks it as cooler than most places in New Mexico. In Los Alamos, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Los Alamos are September, August and June.

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 Los Alamos with an average of 18.6°. This is about average compared to other places in New Mexico.

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 Los Alamos, there are 9.5 days annually when the high temperature is over 90°, which is cooler than most places in New Mexico.

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 Los Alamos, there are 155.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Mexico.

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 Los Alamos, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in New Mexico.

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.


August is the wettest month in Los Alamos with 2.8 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 41% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 16.4 inches in Los Alamos means that it is wetter than most places in New Mexico.

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.

August is the rainiest month in Los Alamos with 12.4 days of rain, and January is the driest month with only 4.5 rainy days. There are 80.0 rainy days annually in Los Alamos, which is one of the rainiest places in New Mexico. The rainiest season is Autumn when it rains 37% of the time and the driest is Spring with only a 18% 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 38.5 inches in Los Alamos means that it is snowier than most places in New Mexico.

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

December is the snowiest month in Los Alamos with 8.9 inches of snow, and 7 months of the year have significant snowfall.