Armstrong, IA Weather

Armstrong, IA climate is warm during summer when temperatures tend to be in the 70'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 82.80 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 3.40 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 22 degrees Fahrenheit, and fairly limited during winter with an average difference of 18 degrees Fahrenheit.

The annual average precipitation at Armstrong is 30.34 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 4.38 Inches.

Weather Data

Current Conditions

(Updated: 11:52 AM CST TUE NOV 24 2009)

Light Rain, 41°F	Humidity: 93%	Dewpoint: 39°F
	Wind Speed: N 15.0 MPH (13 KT)	Heat Index: 41°F
	Barometer: 29.88 in.	Wind Chill: 33°F

Weather Forecast

(Generated: 6:42 AM CST TUE NOV 24 2009)

	Hi: 45°F	Today: Rain until late afternoon...Then a chance of rain late in the afternoon. High in the mid 40s. Temperature steady or slowly falling in the afternoon. North wind 10 to 15 mph with gusts to around 25 mph. Chance of rain near 100 percent.
	Lo: 31°F
	Hi: 39°F	Wednesday: Cloudy with a 50 percent chance of light snow showers. Breezy. High in the upper 30s. Northwest wind 15 to 25 mph.
	Lo: 29°F
	Hi: 39°F	Thanksgiving day: Partly sunny. Breezy. High in the upper 30s. Northwest wind 10 to 20 mph.
	Lo: 21°F
	Hi: 41°F	Friday: Partly cloudy. Low in the lower 20s. High in the lower 40s.
	Lo: 25°F
	Hi: 45°F	Saturday: Mostly clear. Low in the mid 20s. High in the mid 40s.
	Lo: 25°F
	Hi: 39°F	Sunday: Partly cloudy. Breezy. Low in the mid 20s. High in the upper 30s.
	Lo: 25°F
	Hi: 39°F	Monday: Partly cloudy. Breezy. Low in the mid 20s. High in the upper 30s.
	Lo: 25°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 6:50 AM CST	Sunrise: 7:21 AM CST
		Sunset: 4:46 PM CST	Civil Twilight: 5:18 PM CST

Normal Climate

Normal Temperatures

(SWEA CITY 1 NE Weather station, 9.95 miles from Armstrong)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	22.4	28.8	41.3	56.7	70.8	79.6	82.8	80.2	73.1	60.5	41.3	26.4	55.3
Mean °F	12.9	20.0	32.9	46.3	59.7	68.8	72.1	69.3	61.1	48.6	32.4	17.8	45.2
Min °F	3.4	11.2	24.4	35.8	48.6	57.9	61.3	58.3	49.0	36.6	23.4	9.2	34.9

Normal Precipitation