average sunny days in mt vernon wa
Snowfall is 4 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 154. On average, there are 156 sunny days per year in Mount Vernon, Washington. The July high is around 73 degrees. The January low is 34. Our comfort index, which is based on humidity during the hot months, is a 79 out of 100, where higher is more comfortable.