Zip 81503 (Grand Junction, CO) Climate

Grand Junction, CO 81503 has a semi-arid desert climate with hot summers and cool winters. The average high temperature in the summer months is usually around 90°F and can get as low as 33°F during the winter months. Rainfall is minimal throughout the year, typically ranging from 7-10 inches annually. Grand Junction also sees an average of about 300 sunny days a year, making for plenty of outdoor activities throughout most of the year.

Grand Junction (zip 81503), Colorado gets 10 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Grand Junction (zip 81503) averages 16 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 242 sunny days per year in Grand Junction (zip 81503). The US average is 205 sunny days.

Grand Junction (zip 81503) gets some kind of precipitation, on average, 70 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 93 degrees
Winter Low: the January low is 18
Rain: averages 10 inches of rain a year
Snow: averages 16 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 81503 zip code is 7.4 (10=best), which means it is one of the most pleasant places in Colorado.

8.3 Summer - 5.6 Winter

September, May and June are the most pleasant months in the 81503 zip code, while January and December are the least comfortable months.

Climate	Grand Junction, Colorado	United States
	Unlock	38.1 in.
	15.8 in.	Unlock
	Unlock	106.2 days
	242 days	Unlock
	92.8°	85.8°
	Unlock	21.7°
	7.4	Unlock
	Unlock	4.3
	4596 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for the 81503 zip code with an average high temperature of 92.8°, which ranks it as one of the hottest places in Colorado. In the 81503 zip code, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 81503 zip code are May, September and June.

In the 81503 zip code, there are 54.4 days annually when the high temperature is over 90°, which is one of the hottest places in Colorado.

January has the coldest nighttime temperatures for the 81503 zip code with an average of 18.3°. This is one of the warmest places in Colorado.

In the 81503 zip code, there are 127.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Colorado.

In the 81503 zip code, there are 1.8 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Colorado.

Humidity is low in the 81503 zip code, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

September is the wettest month in the 81503 zip code 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 10.0 inches in the 81503 zip code means that it is one of the driest places in Colorado.

September is the rainiest month in the 81503 zip code with 7.0 days of rain, and June is the driest month with only 3.8 rainy days. There are 69.5 rainy days annually in the 81503 zip code, 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.

An annual snowfall of 15.8 inches in the 81503 zip code means that it is one of the least snowy places in Colorado. December is the snowiest month in the 81503 zip code with 4.3 inches of snow, and 6 months of the year have significant snowfall.

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