Helena, MT Weather

Helena, 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 83.40 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 9.90 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 31 degrees Fahrenheit, and moderate during winter with an average difference of 21 degrees Fahrenheit.

The annual average precipitation at Helena is 11.32 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 1.82 Inches.

Weather Data

Current Conditions

(Updated: 5:53 PM MST TUE NOV 24 2009)

Overcast, 38°F	Humidity: 70%	Dewpoint: 29°F
	Wind Speed: W 10.4 MPH (9 KT)	Heat Index: 38°F
	Barometer: 30.26 in.	Wind Chill: 31°F

Weather Forecast

(Generated: 2:39 PM MST TUE NOV 24 2009)

		Tonight: Mostly cloudy with a 20 percent chance of snow showers. Lows 20 to 30. West winds 5 to 15 mph. Gusts up to 30 mph in the evening.
	Lo: 26°F
	Hi: 46°F	Wednesday: Mostly cloudy in the morning...Then becoming partly cloudy. Highs 40 to 50. Southwest winds 5 to 15 mph with gusts to 30 mph.
	Lo: 31°F
	Hi: 48°F	Thanksgiving day: Partly cloudy. Highs 45 to 50. Southwest winds 5 to 15 mph with gusts to 30 mph.
	Lo: 28°F
	Hi: 41°F	Friday: Mostly cloudy with a 50 percent chance of snow showers. Highs 35 to 45. Lows 20 to 35.
	Lo: 28°F
	Hi: 31°F	Saturday: Mostly cloudy with a 40 percent chance of snow showers. Highs 25 to 35.
	Lo: 23°F
	Hi: 36°F	Sunday: Partly cloudy with a 20 percent chance of snow showers. Highs 30 to 40. Lows 20 to 30.
	Lo: 26°F
	Hi: 36°F	Monday: Partly cloudy with a 20 percent chance of snow showers. Highs 30 to 40. Lows 20 to 30.
	Lo: 26°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 7:08 AM MST	Sunrise: 7:42 AM MST
		Sunset: 4:46 PM MST	Civil Twilight: 5:20 PM MST

Normal Climate

Normal Temperatures

(HELENA AP Weather station, 3.14 miles from Helena)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	30.5	37.3	46.8	56.9	65.9	75.0	83.4	82.5	71.0	58.4	41.5	31.5	56.7
Mean °F	20.2	26.4	35.1	44.1	52.9	61.2	67.8	66.7	56.1	44.8	30.9	21.4	44.0
Min °F	9.9	15.6	23.5	31.2	39.8	47.5	52.3	50.8	41.2	31.2	20.3	11.3	31.2

Normal Precipitation