The United States is a country with a very large territory, and therefore the climates vary depending on the place you intend to visit.
Temperatures between different states can be incredibly diverse. In some states, winters are very cold with temperatures often going beyond 10 degrees below zero; whereas in other states, it is perpetual summer, with average temperatures of 24 degrees all year round. The United States can be visited year-round, depending on where you would like to visit and what you intend to do. It is advisable to consider the hurricane season if visiting particular states.