Teton County, WY Climate

Teton County, WY has a mostly continental climate with warm, dry summer days and cold, snowy winters. The temperature in the summer reaches an average of 80°F during the day and cools off to a comfortable 50°F at night. Winters can get quite frigid with temperatures dipping down to an average of 10°F during the day and -11°F at night. Snowfall usually starts in mid-November and can last until April or May bringing anywhere from 180 inches to over 500 inches depending on the year.

Teton County, Wyoming gets 22 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Teton County averages 146 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 219 sunny days per year in Teton County. The US average is 205 sunny days.

Teton County gets some kind of precipitation, on average, 120 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 80 degrees
Winter Low: the January low is 2
Rain: averages 22 inches of rain a year
Snow: averages 146 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Teton County is 5.6 (10=best), which means it is one of the least comfortable places in Wyoming.

8.5 Summer - 2.6 Winter

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

Climate	Teton, Wyoming	United States
	21.8 in.	38.1 in.
	146.3 in.	27.8 in.
	120.4 days	106.2 days
	219 days	205 days
	79.5°	85.8°
	2.3°	21.7°
	5.6	7
	3.7	4.3
	8053 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 Teton County with an average high temperature of 79.5°, which ranks it as one of the coolest places in Wyoming. In Teton County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Teton County are August, July and June.

In Teton County, there are 2.3 days annually when the high temperature is over 90°, which is one of the coolest places in Wyoming.

January has the coldest nighttime temperatures for Teton County with an average of 2.3°. This is one of the coldest places in Wyoming.

In Teton County, there are 237.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Wyoming.

In Teton County, there are 42.9 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Wyoming.

Humidity is very low in Teton 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.

December is the wettest month in Teton County with 2.5 inches of rain, and the driest month is July with 1.3 inches. The wettest season is Spring with 31% of yearly precipitation and 19% occurs in Autumn, which is the driest season. The annual rainfall of 21.8 inches in Teton County means that it is one of the wettest places in Wyoming.

December is the rainiest month in Teton County with 13.5 days of rain, and September is the driest month with only 7.3 rainy days. There are 120.4 rainy days annually in Teton County, which is one of the rainiest places in Wyoming. The rainiest season is Spring when it rains 31% of the time and the driest is Autumn with only a 21% chance of a rainy day.

An annual snowfall of 146.3 inches in Teton County means that it is one of the snowiest places in Wyoming. December is the snowiest month in Teton County with 35.0 inches of snow, and 8 months of the year have significant snowfall.

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