Rock Springs, WY Climate


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United States / Wyoming / Rock Springs Metro Area / Sweetwater County / Rock Springs / Zip Codes
Rock Springs, WY has a semi-arid climate with hot summers and cold winters. Temperatures in July average around 85 degrees Fahrenheit while temperatures in January average around 20 degrees Fahrenheit. The city receives an average of 12 inches of precipitation each year. Snowfall typically occurs from October to May, with the heaviest snowfalls occurring from December to February. Despite the lack of rainfall, Rock Springs is known for its clear skies and beautiful sunsets.

Rock Springs, Wyoming gets 9 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rock Springs averages 41 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 238 sunny days per year in Rock Springs. The US average is 205 sunny days.

Rock Springs gets some kind of precipitation, on average, 72 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 10
Rain: averages 9 inches of rain a year
Snow: averages 41 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Rock Springs is 6.8 (10=best), which means it is more comfortable than most places in Wyoming.

8.9 Summer - 4.7 Winter
June, August and July are the most pleasant months in Rock Springs, while December and January are the least comfortable months.

  ClimateRock Springs, WyomingUnited States
  8.9 in.38.1 in.
  40.6 in.27.8 in.
  72.1 days106.2 days
  238 days205 days
  85.8°85.8°
  10.1°21.7°
  6.87
  4.64.3
  6388 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 Rock Springs with an average high temperature of 85.8°, which ranks it as about average compared to other places in Wyoming. In Rock Springs, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rock Springs are June, September and August.
In Rock Springs, there are 14.2 days annually when the high temperature is over 90°, which is about average compared to other places in Wyoming.
January has the coldest nighttime temperatures for Rock Springs with an average of 10.1°. This is about average compared to other places in Wyoming.
In Rock Springs, there are 186.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Wyoming.
In Rock Springs, there are 15.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wyoming.
Humidity is very low in Rock Springs, 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.
May is the wettest month in Rock Springs with 1.3 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Summer with 32% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 8.9 inches in Rock Springs means that it is drier than most places in Wyoming.
May is the rainiest month in Rock Springs with 7.9 days of rain, and February is the driest month with only 5.1 rainy days. There are 72.1 rainy days annually in Rock Springs, which is about average compared to other places in Wyoming. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 22% chance of a rainy day.
An annual snowfall of 40.6 inches in Rock Springs means that it is less snowy than most places in Wyoming. February is the snowiest month in Rock Springs with 7.1 inches of snow, and 8 months of the year have significant snowfall.
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Clay · Rock Springs, WY
Nice town but not for everyone, especially the fai
Over 15 years ago

Rock Springs will grow on you. It is a big city (about 20,000) by Wyoming standards. There are a few chain stores and a small mall. Wal-Mart is the main place to shop  More

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Frank · Redmond, OR
life in rock
Over 16 years ago

i once lived in rock for about a year and then transfered to oregon. i'm ready to go back.the town is like any it has good and bad.im going back because it grew on me  More

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Clayton · Arlee, MT
Are the rumors true?
Over 17 years ago

I have heard lots of rumors about Rock Springs. I know that many people say it is a rough town. Since I am looking at possibly teaching there, I would like to know what  More

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