A cloud with its base at the earth's surface. Frontal fog Fog produced when sufficient water vapor is added to the air by evaporation, and the moist air mixes with relatively drier air.
On average, there are 246 sunny days per year in Arvada, Colorado. The July high is around 88 degrees. The January low is 19. Sperling's comfort index for Arvada is a 71 out of 100, where a higher score indicates a more comfortable year-around climate. The US average for the comfort index is 54.
Colorado has Some  very cold temperatures alternating with some surprisingly warm  days.The highest temperature recorded in Colorado as of July 10,  2013 is 114 degrees in Las Animas, Co on 6/23/2012 (per the  National Climatic Data Center). + 12 others found this useful. HeyIts Maria.