Mt. Vernon, IA Weather

Mt. Vernon, IA climate is warm during summer when temperatures tend to be in the 70'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 85.30 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 11.50 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 21 degrees Fahrenheit, and fairly limited during winter with an average difference of 17 degrees Fahrenheit.

The annual average precipitation at Mt. Vernon is 36.62 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 4.80 Inches.

Weather Data

Current Conditions

(Updated: 5:52 AM CST TUE NOV 24 2009)

Fog, 44°F	Humidity: 100%	Dewpoint: 44°F
	Wind Speed: E 10.4 MPH (9 KT)	Heat Index: 44°F
	Barometer: 29.90 in.	Wind Chill: 38°F

Weather Forecast

(Generated: 3:56 AM CST TUE NOV 24 2009)

	Hi: 49°F	Rest of today: Areas of dense fog early in the morning. A slight chance of rain early in the morning. Rain likely in the morning...Then rain in the afternoon. High in the upper 40s. East wind 10 to 15 mph. Chance of rain near 100 percent.
	Lo: 39°F
	Hi: 41°F	Wednesday: Brisk. Rain likely in the morning...Then light rain and light snow likely in the afternoon. No snow accumulation. High in the lower 40s. West wind 15 to 25 mph with gusts to around 30 mph. Chance of precipitation 60 percent.
	Lo: 31°F
	Hi: 39°F	Thanksgiving day: Blustery...Cloudy. A chance of snow in the morning...Then a slight chance of snow showers in the afternoon. High in the upper 30s. Northwest wind 15 to 25 mph. Chance of snow 50 percent.
	Lo: 25°F
	Hi: 41°F	Friday: Mostly sunny. High in the lower 40s.
	Lo: 31°F
	Hi: 49°F	Saturday: Partly cloudy. High in the upper 40s. Low in the lower 30s.
	Lo: 31°F
	Hi: 40°F	Sunday: Mostly sunny. High around 40.
	Lo: 25°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 6:34 AM CST	Sunrise: 7:05 AM CST
		Sunset: 4:38 PM CST	Civil Twilight: 5:09 PM CST

Normal Climate

Normal Temperatures

(CEDAR RAPIDS NO 1 Weather station, 11.24 miles from Mt. Vernon)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	28.3	34.9	47.4	61.8	73.1	81.8	85.3	83.1	75.7	64.1	46.4	32.6	59.5
Mean °F	19.9	26.3	37.8	50.4	61.8	70.9	74.8	72.7	64.7	53.3	38.0	25.0	49.6
Min °F	11.5	17.6	28.1	38.9	50.4	60.0	64.3	62.3	53.7	42.5	29.6	17.3	39.7

Normal Precipitation