Yellowstone County, MT Climate

The climate in Yellowstone, MT County is quite diverse, ranging from alpine tundra to subalpine forests and meadows. Summers are generally mild with temperatures ranging from the mid 70s to highs of around 85°F. Winters can be quite cold with temperatures dropping below 0°F and frequent snowfall. Precipitation levels vary greatly depending on the season, with spring and summer typically receiving more rainfall than winter months. On average, Yellowstone experiences about 61 inches of snow annually. This makes it a great location for skiing and other winter activities.

Yellowstone County, Montana gets 14 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Yellowstone County averages 47 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 201 sunny days per year in Yellowstone County. The US average is 205 sunny days.

Yellowstone County gets some kind of precipitation, on average, 83 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 88 degrees
Winter Low: the January low is 14
Rain: averages 14 inches of rain a year
Snow: averages 47 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Yellowstone County is 6.9 (10=best), which means it is one of the most pleasant places in Montana.

8.8 Summer - 5 Winter

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

Climate	Yellowstone, Montana	United States
	14.0 in.	38.1 in.
	46.9 in.	27.8 in.
	82.9 days	106.2 days
	201 days	205 days
	87.7°	85.8°
	14.0°	21.7°
	6.9	7
	3.8	4.3
	3484 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 Yellowstone County with an average high temperature of 87.7°, which ranks it as one of the hottest places in Montana. In Yellowstone County, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Yellowstone County are June, September and August.

In Yellowstone County, there are 31.9 days annually when the high temperature is over 90°, which is one of the hottest places in Montana.

January has the coldest nighttime temperatures for Yellowstone County with an average of 14.0°. This is warmer than most places in Montana.

In Yellowstone County, there are 161.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Yellowstone County, there are 15.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

Humidity is low in Yellowstone County, 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.

May is the wettest month in Yellowstone County with 2.3 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Summer with 35% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 14.0 inches in Yellowstone County means that it is about average compared to other places in Montana.

May is the rainiest month in Yellowstone County with 10.6 days of rain, and January is the driest month with only 5.0 rainy days. There are 82.9 rainy days annually in Yellowstone County, which is about average compared to other places in Montana. The rainiest season is Summer when it rains 32% of the time and the driest is Spring with only a 19% chance of a rainy day.

An annual snowfall of 46.9 inches in Yellowstone County means that it is snowier than most places in Montana. March is the snowiest month in Yellowstone County with 9.2 inches of snow, and 9 months of the year have significant snowfall.

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