Castle Rock, CO Weather

Castle Rock, CO 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 30's.

The warmest month of the year is July with an average maximum temperature of 84.00 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 13.60 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 relatively big during winter with an average difference of 30 degrees Fahrenheit.

The annual average precipitation at Castle Rock is 17.34 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 2.42 Inches.

Weather Data

Current Conditions

(Updated: 8:53 AM MST FRI DEC 5 2008)

Partly Cloudy, 33°F	Humidity: 40%	Dewpoint: 11°F
	Wind Speed: S 8 MPH	Heat Index: 33°F
	Barometer: 29.99 in.	Wind Chill: 26°F

Weather Forecast

(Generated: 4:17 AM MST FRI DEC 05 2008)

	Hi: 42°F	Today: Mostly sunny. Highs 38 to 44. Southwest winds 10 to 15 mph in the morning becoming light.
	Lo: 25°F
	Hi: 45°F	Saturday: Mostly sunny. Highs in the mid 40s.
	Lo: 27°F
	Hi: 51°F	Sunday: Mostly cloudy. Highs 46 to 54.
	Lo: 17°F
	Hi: 40°F	Monday: Chance of rain and snow in the day and snow likely overnight. Highs around 40. Lows around 17. Chance of precipitation 60 percent.
	Lo: 19°F
	Hi: 40°F	Tuesday: Partly cloudy. Highs 36 to 42. Lows around 19.
	Lo: 19°F
	Hi: 45°F	Wednesday: Partly cloudy. Highs in the mid 40s. Lows around 19.
	Lo: 19°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 6:33 AM MST	Sunrise: 7:02 AM MST
		Sunset: 4:35 PM MST	Civil Twilight: 5:05 PM MST

Normal Climate

Normal Temperatures

(CASTLE ROCK Weather station, 1.37 miles from Castle Rock)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	43.9	46.6	51.9	58.3	67.4	78.2	84.0	81.9	74.4	65.0	51.2	45.0	62.3
Mean °F	28.8	32.0	37.7	44.3	53.5	62.9	68.6	66.7	58.7	48.4	36.2	29.9	47.3
Min °F	13.6	17.4	23.4	30.2	39.5	47.6	53.1	51.4	43.0	31.8	21.2	14.8	32.3

Normal Precipitation