Gallatin County, MT Climate

Gallatin, MT County has a temperate climate with cold winters and mild summers. Average winter temperatures range between 15-30°F while average summer temperatures range between 65-85°F. This area of Montana experiences a significant amount of precipitation throughout the year, primarily from October through April. The area also receives an average of 12 inches of snowfall each year, making it a great destination for winter activities like skiing and snowshoeing. In addition to its moderate temperature ranges and abundant precipitation, Gallatin, MT County is home to some of Montana's most beautiful landscapes including Yellowstone National Park and the Rocky Mountains.

Gallatin County, Montana gets 18 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Gallatin County averages 61 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 187 sunny days per year in Gallatin County. The US average is 205 sunny days.

Gallatin County gets some kind of precipitation, on average, 107 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 83 degrees
Winter Low: the January low is 10
Rain: averages 18 inches of rain a year
Snow: averages 61 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Gallatin County is 6.4 (10=best), which means it is less comfortable than most places in Montana.

8.6 Summer - 4.2 Winter

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

Climate	Gallatin, Montana	United States
	17.5 in.	38.1 in.
	60.9 in.	27.8 in.
	107.2 days	106.2 days
	187 days	205 days
	82.7°	85.8°
	10.4°	21.7°
	6.4	7
	3.8	4.3
	6281 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 Gallatin County with an average high temperature of 82.7°, which ranks it as cooler than most places in Montana. In Gallatin County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Gallatin County are August, July and June.

In Gallatin County, there are 14.6 days annually when the high temperature is over 90°, which is cooler than most places in Montana.

December has the coldest nighttime temperatures for Gallatin County with an average of 9.0°. This is colder than most places in Montana.

In Gallatin County, there are 206.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Montana.

In Gallatin County, there are 22.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Montana.

Humidity is low in Gallatin 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 Gallatin County with 2.7 inches of rain, and the driest month is February with 0.8 inches. The wettest season is Summer with 31% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 17.5 inches in Gallatin County means that it is wetter than most places in Montana.

May is the rainiest month in Gallatin County with 12.5 days of rain, and February is the driest month with only 7.0 rainy days. There are 107.2 rainy days annually in Gallatin County, which is rainier than most places in Montana. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 22% chance of a rainy day.

An annual snowfall of 60.9 inches in Gallatin County means that it is snowier than most places in Montana. December is the snowiest month in Gallatin County with 12.0 inches of snow, and 8 months of the year have significant snowfall.

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