Being a huge country, the contiguous United States is home to a wide variety of climates. However, in general, it has a continental climate, with cold winters (often frigid) and hot summers (sometimes very hot), with a different season duration depending on latitude and distance from the sea. The average temperature in the contiguous United States reached 54.35 degrees Fahrenheit (12.42 degrees Celsius) in 2020. This was approximately 2.34 degrees Fahrenheit higher than the 20th-century average. In this year, it was common for temperatures to be near-record or even record-breaking.
Average Temperature By Region
The Southwest region of the U.S. has a hot desert climate at lower elevations. This region experiences high temperatures and dry air and has many vast desert areas. The Northwest is characterized by a diverse climate with bitter, cold winters and somewhat humid, hot summers. The West Coast of the U.S. experiences cool, wet winters and dry, warm summers. The Midwest has humid summers, but winters are long and generally harsh, with temperatures below zero being common, especially in the northern states.