[volkl48]

The overall dryness is not normal, but Denver/Boulder does not generally have snow on the ground consistently in winter. (Up in the mountains is obviously a different story).

The joke in Denver is sometimes that the city's snow plowing plan for the sidestreets appears to be "wait for it to melt" ....which works most of the time. Even in January the average day is over 45F, which combined with the sunny climate often makes short work of snow.