Castle Valley, UT Climate


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United States / Utah / No Metro Area / Grand County / Castle Valley / Zip Codes
Castle Valley, UT has a warm, desert climate with hot summers and mild winters. The area is very dry with low rainfall throughout the year. Summer temperatures can reach as high as 100 degrees Fahrenheit and winter temperatures often dip below freezing at night. Due to its desert location, there is little humidity in Castle Valley making it an ideal climate for outdoor recreation all year round.

Castle Valley, Utah gets 10 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Castle Valley averages 9 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 245 sunny days per year in Castle Valley. The US average is 205 sunny days.

Castle Valley gets some kind of precipitation, on average, 59 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 98 degrees
Winter Low: the January low is 20
Rain: averages 10 inches of rain a year
Snow: averages 9 inches of snow a year


Bestplaces Comfort Index

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

7.2 Summer - 6 Winter
May, September and October are the most pleasant months in Castle Valley, while January and December are the least comfortable months.

  ClimateCastle Valley, UtahUnited States
  9.5 in.38.1 in.
  8.9 in.27.8 in.
  58.5 days106.2 days
  245 days205 days
  97.9°85.8°
  20.3°21.7°
  7.47
  4.64.3
  4685 ft.2443 ft.
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 Castle Valley with an average high temperature of 97.9°, which ranks it as one of the hottest places in Utah. In Castle Valley, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Castle Valley are May, October and September.
In Castle Valley, there are 87.1 days annually when the high temperature is over 90°, which is one of the hottest places in Utah.
January has the coldest nighttime temperatures for Castle Valley with an average of 20.3°. This is warmer than most places in Utah.
In Castle Valley, there are 112.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Utah.
In Castle Valley, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Utah.
Humidity is low in Castle Valley, 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.
October is the wettest month in Castle Valley with 1.3 inches of rain, and the driest month is June with 0.4 inches. The wettest season is Winter with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 9.5 inches in Castle Valley means that it is drier than most places in Utah.
August is the rainiest month in Castle Valley with 6.0 days of rain, and June is the driest month with only 2.7 rainy days. There are 58.5 rainy days annually in Castle Valley, which is less rainy than most places in Utah. The rainiest season is Summer when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.
An annual snowfall of 8.9 inches in Castle Valley means that it is one of the least snowy places in Utah. December is the snowiest month in Castle Valley with 3.3 inches of snow, and 5 months of the year have significant snowfall.
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