February in West Valley City is the rainiest and the cloudiest month of the year. In February, the weather in West Valley City is typically cold. Average daily high temperature in February is about 2 degrees above zero. On average, West Valley City has 11 rainy, 10 partly cloudy, 6 sunny, and 2 cloudy days in February. The rains are usually moderate. February as well as March is considered the most uncomfortable time to visit West Valley City.