Thornton, CO is known for its mild climate and sunny days. The average temperature in Thornton typically ranges from the mid-teens in the winter to the low-90s during the summer months. The city averages over 300 days of sunshine a year, with an average annual precipitation of just under 15 inches. Thornton also experiences some mild humidity levels and low amounts of wind throughout the year. There is little variation in temperatures from season to season, making it a great place to enjoy outdoor activities year-round.
Thornton, Colorado gets 16 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Thornton averages 46 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 Thornton. The US average is 205 sunny days.
Thornton gets some kind of precipitation, on average, 77 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 90 degrees
Winter Low: the January low is 18
Rain: averages 16 inches of rain a year
Snow: averages 46 inches of snow a year