Chinook, MT Weather

Chinook, MT climate is mild during summer when temperatures tend to be in the 60's and extremely cold during winter when temperatures tend to be in the 10's.

The warmest month of the year is July with an average maximum temperature of 84.00 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of -0.50 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 32 degrees Fahrenheit, and moderate during winter with an average difference of 27 degrees Fahrenheit.

The annual average precipitation at Chinook is 13.06 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 2.29 Inches.

Weather Data

Current Conditions

(Updated: 12:53 PM MST SAT NOV 22 2008)

Fair, 43°F	Humidity: 53%	Dewpoint: 27°F
	Wind Speed: SW 14 MPH	Heat Index: 43°F
	Barometer: 29.85 in.	Wind Chill: 36°F

Weather Forecast

(Generated: 11:02 AM MST SAT NOV 22 2008)

	Hi: 43°F	Rest of today: Mostly cloudy. Highs 40 to 45. West winds 10 to 20 mph with gusts to 30 mph.
	Lo: 23°F
	Hi: 38°F	Sunday: Partly cloudy. Highs 35 to 40. West winds 5 to 15 mph.
	Lo: 18°F
	Hi: 48°F	Monday: Sunny. Highs 45 to 50. South winds up to 5 mph.
	Lo: 26°F
	Hi: 48°F	Tuesday: Partly cloudy. Highs 45 to 50. Lows 20 to 30.
	Lo: 26°F
	Hi: 43°F	Wednesday: Mostly cloudy. Highs 40 to 45.
	Lo: 23°F
	Hi: 38°F	Thanksgiving day: Mostly cloudy with a 30 percent chance of snow. Highs 35 to 40.
	Lo: 23°F

Moon, Sunrise and Sunset

	Moon Phase: Waning Crescent Moon	Civil Twilight: 7:00 AM MST	Sunrise: 7:35 AM MST
		Sunset: 4:30 PM MST	Civil Twilight: 5:05 PM MST

Normal Climate

Normal Temperatures

(CHINOOK Weather station, 0.69 miles from Chinook)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	25.9	33.4	45.1	58.9	69.1	77.8	84.0	83.7	72.1	59.2	40.3	29.7	56.6
Mean °F	12.7	19.8	30.9	44.4	55.0	63.9	68.6	67.6	55.4	43.2	26.9	16.7	42.1
Min °F	-0.5	6.2	16.7	29.9	40.8	49.9	53.1	51.4	38.6	27.2	13.4	3.7	27.5

Normal Precipitation