Boulder, UT 

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United States / Utah / No Metro Area / Garfield County / Boulder / Zip Codes

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Climate in Boulder, UT

Boulder, UT is located in the desert southwest and experiences hot and dry summers with temperatures reaching up to 100 degrees Fahrenheit. Winters are mild with average temperatures in the mid-50s. Precipitation is low, with an average of about 8 inches annually. The area has plenty of sunshine year round as it receives on average over 300 days of sunshine each year. However, due to its high elevation of 5,430 feet, Boulder can experience cold winter nights and occasional snowfall during winter months.

Boulder, Utah gets 11 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Boulder averages 37 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 254 sunny days per year in Boulder. The US average is 205 sunny days.

Boulder gets some kind of precipitation, on average, 63 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 86 degrees
Winter Low: the January low is 20
Rain: averages 11 inches of rain a year
Snow: averages 37 inches of snow a year


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

9.1 / 5.5

Summer   /   Winter
June, September and August are the most pleasant months in Boulder, while January and December are the least comfortable months.

Climate Averages
  Boulder, UtahUnited States
  10.7 in.38.1 in.
  36.9 in.27.8 in.
  62.6 days106.2 days
  254 days205 days
  6699 ft.2443 ft.


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 Boulder with an average high temperature of 85.7°, which ranks it as cooler than most places in Utah. In Boulder, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boulder are June, September and August.

In Boulder, there are 15.3 days annually when the high temperature is over 90°, which is cooler than most places in Utah.

January has the coldest nighttime temperatures for Boulder with an average of 19.6°. This is warmer than most places in Utah.

In Boulder, there are 138.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Utah.

In Boulder, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Utah.

Humidity is very low in Boulder, so low that the dry air may be uncomfortable for some people. There are few days during the year when the humidity is even noticable. A very dry climate can lead to cracked, itchy skin and dry eyes.

August is the wettest month in Boulder with 1.7 inches of rain, and the driest month is April with 0.5 inches. The wettest season is Autumn with 30% of yearly precipitation and 19% occurs in Summer, which is the driest season. The annual rainfall of 10.7 inches in Boulder means that it is drier than most places in Utah.

August is the rainiest month in Boulder with 9.5 days of rain, and November is the driest month with only 3.3 rainy days. There are 62.6 rainy days annually in Boulder, which is less rainy than most places in Utah. The rainiest season is Autumn when it rains 32% of the time and the driest is Summer with only a 22% chance of a rainy day.

An annual snowfall of 36.9 inches in Boulder means that it is less snowy than most places in Utah. January is the snowiest month in Boulder with 12.6 inches of snow, and 6 months of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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