Harrison, MT Climate


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United States / Montana / No Metro Area / Madison County / Harrison / Zip Codes
Harrison, Montana enjoys a relatively mild climate, with warm summers and cold winters. The temperature rarely drops below 0°F (-18°C) in the winter and rarely rises above 90°F (32°C) in the summer. The area is subject to frequent heavy snowfall during the winter months and occasional thunderstorms during the summer months. Overall, Harrison has a pleasant climate with plenty of sunshine throughout the year and an abundance of outdoor activities for visitors to enjoy.

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Harrison is 6.7 (10=best), which means it is about average compared to other places in Montana.

8.8 Summer - 4.7 Winter
August, July and September are the most pleasant months in Harrison, while December and January are the least comfortable months.

  ClimateHarrison, MontanaUnited States
  16.2 in.38.1 in.
  60.1 in.27.8 in.
  93.9 days106.2 days
  186 days205 days
  83.1°85.8°
  18.1°21.7°
  6.77
  3.64.3
  4918 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 Harrison with an average high temperature of 83.1°, which ranks it as cooler than most places in Montana. In Harrison, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Harrison are August, June and July.
In Harrison, there are 12.8 days annually when the high temperature is over 90°, which is cooler than most places in Montana.
December has the coldest nighttime temperatures for Harrison with an average of 16.9°. This is warmer than most places in Montana.
In Harrison, there are 162.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.
In Harrison, there are 11.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.
Humidity is low in Harrison, 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 Harrison with 2.8 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 35% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 16.2 inches in Harrison means that it is wetter than most places in Montana.
May is the rainiest month in Harrison with 12.6 days of rain, and February is the driest month with only 5.0 rainy days. There are 93.9 rainy days annually in Harrison, which is about average compared to other places in Montana. The rainiest season is Summer when it rains 33% of the time and the driest is Spring with only a 17% chance of a rainy day.
An annual snowfall of 60.1 inches in Harrison means that it is snowier than most places in Montana. December is the snowiest month in Harrison with 10.5 inches of snow, and 8 months of the year have significant snowfall.
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