Corvallis, MT Climate

Corvallis, MT enjoys mild to moderate temperatures throughout the year. The average annual temperature is 44°F (7°C), with high temperatures reaching around 70°F (21°C) in the summer months and low temperatures dipping into the teens (-9°C) in the winter months. Precipitation is relatively light, averaging around 15 inches (38 cm) of rain per year, making it one of the drier regions in Montana. Snowfall amounts also tend to be relatively low, with an average of just over 40 inches (102 cm). Despite these moderate temperatures, Corvallis does experience chilly winters and hot summers due to its location at a higher elevation.

Corvallis, Montana gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Corvallis averages 34 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 158 sunny days per year in Corvallis. The US average is 205 sunny days.

Corvallis 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 85 degrees
Winter Low: the January low is 18
Rain: averages 12 inches of rain a year
Snow: averages 34 inches of snow a year

Bestplaces Comfort Index

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

8.8 Summer - 4.5 Winter

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

Climate	Corvallis, Montana	United States
	12.3 in.	38.1 in.
	34.0 in.	27.8 in.
	106.6 days	106.2 days
	158 days	205 days
	85.0°	85.8°
	18.4°	21.7°
	6.7	7
	3	4.3
	3481 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 Corvallis with an average high temperature of 85.0°, which ranks it as warmer than most places in Montana. In Corvallis, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Corvallis are June, September and August.

In Corvallis, there are 18.9 days annually when the high temperature is over 90°, which is about average compared to other places in Montana.

December has the coldest nighttime temperatures for Corvallis with an average of 16.4°. This is warmer than most places in Montana.

In Corvallis, there are 171.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Corvallis, there are 8.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

Humidity is very low in Corvallis, 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 Corvallis with 1.6 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 29% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 12.3 inches in Corvallis means that it is drier than most places in Montana.

June is the rainiest month in Corvallis with 10.9 days of rain, and July is the driest month with only 6.5 rainy days. There are 106.6 rainy days annually in Corvallis, which is rainier than most places in Montana. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 34.0 inches in Corvallis means that it is less snowy than most places in Montana. December is the snowiest month in Corvallis with 9.8 inches of snow, and 6 months of the year have significant snowfall.