Chesapeake, Virginia, gets 48 inches of rain per year. The US average is 37. Snowfall is 7 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 102.On average, there are 211 sunny days per year in Chesapeake, Virginia. The July high is around 87 degrees.he average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 102. On average, there are 211 sunny days per year in Chesapeake, Virginia. The July high is around 87 degrees.