Grafton, WI Weather

Grafton, WI 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 78.00 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 13.20 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 14 degrees Fahrenheit, and fairly limited during winter with an average difference of 14 degrees Fahrenheit.

The annual average precipitation at Grafton is 32.08 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is August with an average rainfall of 4.21 Inches.

Weather Data

Current Conditions

(Updated: 4:15 AM CST SUN NOV 8 2009)

Fair, 36°F	Humidity: 91%	Dewpoint: 33°F
	Wind Speed: CALM	Heat Index: 36°F
	Barometer: 30.10 in.	Wind Chill: 36°F

Weather Forecast

(Generated: 2:57 AM CST SUN NOV 08 2009)

	Hi: 61°F	Today: Partly sunny. Highs in the lower 60s. Southeast winds up to 10 mph.
	Lo: 51°F
	Hi: 60°F	Monday: Patchy fog through late morning. Mostly cloudy with a 30 percent chance of light rain. Highs around 60. Northwest winds 5 to 10 mph.
	Lo: 41°F
	Hi: 51°F	Tuesday: Sunny. Highs in the lower 50s. Northeast winds 5 to 15 mph.
	Lo: 35°F
	Hi: 51°F	Veterans day: Sunny. Highs in the lower 50s.
	Lo: 39°F
	Hi: 55°F	Thursday: Partly sunny. Highs in the mid 50s.
	Lo: 40°F
	Hi: 55°F	Friday: Partly sunny. Highs in the mid 50s.
	Lo: 45°F

Moon, Sunrise and Sunset

	Moon Phase: Waning Gibbous Moon	Civil Twilight: 6:05 AM CST	Sunrise: 6:35 AM CST
		Sunset: 4:35 PM CST	Civil Twilight: 5:05 PM CST

Normal Climate

Normal Temperatures

(PORT WASHINGTON Weather station, 5.91 miles from Grafton)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	27.4	31.4	40.2	50.0	61.6	71.8	78.0	76.8	69.6	58.2	44.5	32.6	53.5
Mean °F	20.3	24.5	33.9	43.8	54.4	64.2	70.8	70.2	62.5	51.2	38.0	26.0	46.7
Min °F	13.2	17.5	27.6	37.5	47.2	56.5	63.5	63.5	55.3	44.1	31.5	19.3	39.7

Normal Precipitation