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.
The highest temperatures in Colorado occur in the Arkansas Valley and lower elevations of South Platte and Republican Rivers. The hottest temperature ever recorded in Colorado was 114Â°F at Las Animas in July 1, 1933 and at Sedgwick on July 11, 1954.Because of the very low relative humidity accompanying these high temperatures, hot days cause less discomfort than in more humid areas.estern Colorado winter weather is colder but calmer and less variable than east of the mountains. Temperatures can drop below zero F in all areas of western Colorado, but the valleys of west central and southwest Colorado receive abundant sunshine and the winter climate is not harsh.