Castle Rock, CO is known for its sunny and pleasant climate, with mild temperatures and plenty of sunshine. The average high temperature in August is 78°F (25.6°C), while the average low temperature in January is 20°F (-6.7°C). Castle Rock receives around 15 inches of precipitation annually, which is fairly evenly distributed throughout the year. This makes it an ideal place to enjoy outdoor activities all year round. Winters are usually quite mild, with very little snowfall, but when it does snow, the area offers a variety of winter sports opportunities such as skiing and snowboarding. Summers are warm and dry, making them perfect for hikes or bike rides along the trails near Castle Rock.
Castle Rock (zip 80109), Colorado gets 19 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Castle Rock (zip 80109) averages 76 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 245 sunny days per year in Castle Rock (zip 80109). The US average is 205 sunny days.
Castle Rock (zip 80109) gets some kind of precipitation, on average, 63 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 86 degrees
Winter Low: the January low is 19
Rain: averages 19 inches of rain a year
Snow: averages 76 inches of snow a year