Sweetwater County, WY Climate

Sweetwater, WY County has a semi-arid climate with hot summers and cold winters. In the summer months, temperatures can reach up to 90 degrees Fahrenheit and in the winter temperatures can dip as low as -20 degrees Fahrenheit. Rainfall is sparse throughout the year, with an average of just over 10 inches per year. The area experiences strong winds for much of the year due to its inland location and its proximity to the Rocky Mountains. Overall, Sweetwater is dry and warm in the summer months and very cold in the winter months, making it a great place to spend time outdoors all year round.

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

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

On average, there are 234 sunny days per year in Sweetwater County. The US average is 205 sunny days.

Sweetwater County gets some kind of precipitation, on average, 64 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 84 degrees
Winter Low: the January low is 9
Rain: averages 9 inches of rain a year
Snow: averages 37 inches of snow a year

Bestplaces Comfort Index

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

9 Summer - 4.7 Winter

August, July and June are the most pleasant months in Sweetwater County, while December and January are the least comfortable months.

Climate	Sweetwater, Wyoming	United States
	Unlock	38.1 in.
	36.8 in.	Unlock
	Unlock	106.2 days
	234 days	Unlock
	84.3°	85.8°
	Unlock	21.7°
	6.8	Unlock
	Unlock	4.3
	6868 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 Sweetwater County with an average high temperature of 84.3°, which ranks it as about average compared to other places in Wyoming. In Sweetwater County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sweetwater County are June, August and September.

In Sweetwater County, there are 9.6 days annually when the high temperature is over 90°, which is cooler than most places in Wyoming.

January has the coldest nighttime temperatures for Sweetwater County with an average of 9.3°. This is about average compared to other places in Wyoming.

In Sweetwater County, there are 195.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Wyoming.

In Sweetwater County, there are 18.7 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Wyoming.

Humidity is very low in Sweetwater County, 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 Sweetwater County 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 14% occurs in Spring, which is the driest season. The annual rainfall of 8.9 inches in Sweetwater County means that it is drier than most places in Wyoming.

May is the rainiest month in Sweetwater County with 7.3 days of rain, and February is the driest month with only 4.2 rainy days. There are 63.7 rainy days annually in Sweetwater County, which is less rainy than most places in Wyoming. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 20% chance of a rainy day.

An annual snowfall of 36.8 inches in Sweetwater County means that it is less snowy than most places in Wyoming. February is the snowiest month in Sweetwater County with 6.2 inches of snow, and 9 months of the year have significant snowfall.

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