July in Whitehorse is the rainiest and the warmest month of the year. In July, the weather in Whitehorse is typically warm. Average daily high temperature in July is about 15 degrees above zero. On average, Whitehorse has 12 rainy, 8 cloudy, 7 partly cloudy, and 4 sunny days in July. The rains are usually light. July as well as January, February, April, and September is considered the most uncomfortable time to visit Whitehorse.