The general weather rule is that if you are not happy with the weather, just wait fifteen minutes and it will change. Fall is characterized by chilly nights and warm afternoons. The first snowfall usually comes in late September or early October, but you will still be able to play golf into December. Temperatures will begin to drop into the 30's and 40's at night, but daytime temperatures will range from 50-70 degrees. Typical winter weather begins after Christmas.
Winters are generally rather mild.
Denver does not have tremendous harsh temperatures, and cold waves generally only last a few days. May 15th is generally regarded as the last freeze date for metro Denver. In the summer, the weather pattern starts out in the morning with light sunshine, then becomes cloudy in the late afternoon resulting in scattered thunderstorms. By August, the showers taper off. Daytime temperatures over 100 degrees are very rare.