Chinook, MT has an arid climate with cold, dry winters and hot, wet summers. Average temperatures range from around -15 degrees Fahrenheit in the winter to around 85 degrees Fahrenheit in the summer. Chinook has low levels of precipitation throughout the year with only about 15 inches of rain falling annually. The area is known for its sunny days, with over 300 days of sunshine each year. Chinook is located at a high altitude which can lead to windy conditions during the winter months.
Chinook, Montana gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Chinook averages 30 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 197 sunny days per year in Chinook. The US average is 205 sunny days.
Chinook gets some kind of precipitation, on average, 78 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 6
Rain: averages 12 inches of rain a year
Snow: averages 30 inches of snow a year