South Glastonbury, MT Climate


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United States / Montana / No Metro Area / Park County / South Glastonbury / Zip Codes
South Glastonbury, MT has a semi-arid climate with cold winters and hot summers. Winters are characterized by temperatures that generally range between 18°F to 31°F, while summers typically experience temperatures between 66°F to 90°F. Rainfall is usually scarce throughout the year, though there is slightly more precipitation during the summer months. The region experiences low humidity levels and frequent sunshine all year round.

South Glastonbury, Montana gets 16 inches of rain, on average, per year. The US average is 38 inches of rain per year.

South Glastonbury averages 76 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 South Glastonbury. The US average is 205 sunny days.

South Glastonbury gets some kind of precipitation, on average, 102 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 15
Rain: averages 16 inches of rain a year
Snow: averages 76 inches of snow a year


Bestplaces Comfort Index

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

8.7 Summer - 4.3 Winter
August, July and June are the most pleasant months in South Glastonbury, while December and January are the least comfortable months.

  ClimateSouth Glastonbury, MontanaUnited States
  16.0 in.38.1 in.
  75.6 in.27.8 in.
  102.2 days106.2 days
  187 days205 days
  82.6°85.8°
  14.5°21.7°
  6.47
  3.64.3
  5151 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 South Glastonbury with an average high temperature of 82.6°, which ranks it as cooler than most places in Montana. In South Glastonbury, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for South Glastonbury are August, July and June.
In South Glastonbury, there are 10.9 days annually when the high temperature is over 90°, which is cooler than most places in Montana.
December has the coldest nighttime temperatures for South Glastonbury with an average of 13.7°. This is about average compared to other places in Montana.
In South Glastonbury, there are 183.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Montana.
In South Glastonbury, there are 15.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.
Humidity is very low in South Glastonbury, 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.
June is the wettest month in South Glastonbury with 2.5 inches of rain, and the driest month is February with 0.6 inches. The wettest season is Autumn with 33% of yearly precipitation and 13% occurs in Spring, which is the driest season. The annual rainfall of 16.0 inches in South Glastonbury means that it is wetter than most places in Montana.
June is the rainiest month in South Glastonbury with 11.8 days of rain, and February is the driest month with only 6.5 rainy days. There are 102.2 rainy days annually in South Glastonbury, which is rainier than most places in Montana. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 21% chance of a rainy day.
An annual snowfall of 75.6 inches in South Glastonbury means that it is one of the snowiest places in Montana. December is the snowiest month in South Glastonbury with 13.7 inches of snow, and 9 months of the year have significant snowfall.
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