Corvallis, MT Weather

Corvallis, MT climate is mild during summer when temperatures tend to be in the 60's and very cold during winter when temperatures tend to be in the 20's.

The warmest month of the year is July with an average maximum temperature of 84.40 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 17.20 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 36 degrees Fahrenheit, and moderate during winter with an average difference of 20 degrees Fahrenheit.

The annual average precipitation at Corvallis is 11.69 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 1.72 Inches.

Weather Data

Current Conditions

(Updated: 6:53 AM MST MON NOV 23 2009)

Overcast, 32°F	Humidity: 85%	Dewpoint: 28°F
	Wind Speed: CALM	Heat Index: 32°F
	Barometer: 30.23 in.	Wind Chill: 32°F

Weather Forecast

(Generated: 5:04 AM MST MON NOV 23 2009)

	Hi: 41°F	Today: Partly cloudy. Slight chance of snow showers in the morning. Highs in the lower 40s.
	Lo: 25°F
	Hi: 40°F	Tuesday: Mostly cloudy with a slight chance of rain. Highs near 40.
	Lo: 23°F
	Hi: 30°F	Wednesday: Mostly cloudy. Patchy freezing fog. Highs near 30.
	Lo: 19°F
	Hi: 30°F	Thanksgiving day: Mostly cloudy. Areas of freezing fog...Then patchy freezing fog in the afternoon. Lows 16 to 20. Highs near 30.
	Lo: 27°F
	Hi: 43°F	Friday: Mostly cloudy with a 40 percent chance of rain and snow. Highs in the lower to mid 40s.
	Lo: 30°F
	Hi: 40°F	Saturday: Mostly cloudy with a 30 percent chance of snow showers. Lows near 30. Highs in the upper 30s to mid 40s.
	Lo: 25°F

Moon, Sunrise and Sunset

	Moon Phase: First Quarter Moon	Civil Twilight: 7:14 AM MST	Sunrise: 7:48 AM MST
		Sunset: 4:56 PM MST	Civil Twilight: 5:30 PM MST

Normal Climate

Normal Temperatures

(WESTERN AG RESEARCH CNTR Weather station, 0.55 miles from Corvallis)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	35.2	42.2	51.2	60.5	68.5	76.5	84.4	83.9	72.7	60.4	43.5	34.6	59.5
Mean °F	26.4	31.5	38.9	46.2	53.5	60.7	66.6	65.8	56.4	46.2	33.8	25.9	46.0
Min °F	17.6	20.8	26.6	31.8	38.5	44.8	48.7	47.6	40.1	32.0	24.1	17.2	32.5

Normal Precipitation