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.
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
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Thornton is 7.3 (10=best), which means it is more comfortable than most places in Colorado.
7.3 / 10
September, June and August are the most pleasant months in Thornton, while December and January are the least comfortable months.