 On average, the hottest month is July, while January is the coldest.Bellevue is the main Eastside hub for both the local transit authority, King County Metro, and Sound Transit, the regional transit system.The Bellevue Transit Center, which serves both Metro and Sound buses, is located in the heart of the downtown business district and is connected to Interstate 405 by NE 6th St. and a direct-access Texas T HOV ramp.