Sweet Grass County, Montana 

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United States / Montana / No Metro Area / Sweet Grass County / Cities / Zip Codes
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Climate in Sweet Grass County, Montana

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

Sweet Grass County averages 71 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 200 sunny days per year in Sweet Grass County. The US average is 205 sunny days.

Sweet Grass County gets some kind of precipitation, on average, 91 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 82 degrees
Winter Low: the January low is 15
Rain: averages 18 inches of rain a year
Snow: averages 71 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Sweet Grass County is 6.6 (10=best), which means it is about average compared to other places in Montana.

8.7 / 4.8

Summer   /   Winter
August, July and September are the most pleasant months in Sweet Grass County, while December and January are the least comfortable months.

Climate Averages
  Sweet Grass, MontanaUnited States
  18.2 in.38.1 in.
  70.5 in.27.8 in.
  91.3 days106.2 days
  200 days205 days
  81.8°85.8°
  15.1°21.7°
  6.67
  3.64.3
  5603 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 Sweet Grass County with an average high temperature of 81.8°, which ranks it as cooler than most places in Montana. In Sweet Grass County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sweet Grass County are August, July and June.


In Sweet Grass County, there are 13.7 days annually when the high temperature is over 90°, which is cooler than most places in Montana.


December has the coldest nighttime temperatures for Sweet Grass County with an average of 14.6°. This is warmer than most places in Montana.


In Sweet Grass County, there are 181.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Montana.


In Sweet Grass County, there are 17.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Montana.


Humidity is low in Sweet Grass 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.


June is the wettest month in Sweet Grass County with 3.0 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 34% of yearly precipitation and 12% occurs in Spring, which is the driest season. The annual rainfall of 18.2 inches in Sweet Grass County means that it is wetter than most places in Montana.


June is the rainiest month in Sweet Grass County with 11.6 days of rain, and January is the driest month with only 5.2 rainy days. There are 91.3 rainy days annually in Sweet Grass County, which is about average compared to other places in Montana. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 18% chance of a rainy day.


An annual snowfall of 70.5 inches in Sweet Grass County means that it is snowier than most places in Montana. March is the snowiest month in Sweet Grass County with 13.0 inches of snow, and 9 months of the year have significant snowfall.





  • Annual Rainfall (US Avg: 36.5")
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    MAPS OF SWEET GRASS COUNTY, MONTANA
    ZIP CODES IN SWEET GRASS COUNTY, MONTANA
    59011 59033 59052 59055


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