Hottest and Coldest States in the Summer

Print Email

With one of the colder springs on record in the United States, Americans across the country are looking forward to enjoying the warm summer months. Thirty-two states recorded temperatures that ranked among the 10 coldest this past April. At the same time, above-normal temperatures were observed across the Southwest this spring.

While somewhat unusual extremes have been recorded this year, variation in temperatures across the United States is completely normal. Even during the upcoming summer months, there is a wide range of temperatures between states.

24/7 Wall St. examined the varying temperatures across states with a focus on summer temperatures. We reviewed for each state the average temperature during the summer months of June, July, and August from 1901 to 2000, and between 1980 and 2010, using the Climate-at-a-Glance feature of the National Centers for Environmental Information produced by the government scientific agency National Oceanic and Atmospheric Administration.

Looking at average yearly temperatures for each state’s weather stations, we also found the areas in each state that tend to be the hottest during the summer. The highest temperatures recorded since 1980 in each state do not necessarily track with the average yearly temperatures. For instance, the hottest temperature recorded since 1980 was in Phoenix, Arizona. But Arizona is not the hottest state, on average, during the summer.

Click here to see the hottest and coldest states in the summer.

To identify the hottest and coldest states in the summer, 24/7 Wall St. reviewed for each state the average temperature during the summer months of June, July, and August from 1901 to 2000 using the Climate-at-a-Glance feature of the National Centers for Environmental Information produced by NOAA. We also reviewed 30 years of temperature records between 1980 and 2010 from NOAA’s Comparative Climate Data Report from 2015. The hottest area in the summer is based on the 30-year data, as is the location of the weather station with the highest average temperature. The data used to rank Hawaii is based on records over the 30 years through 2010. The data used to rank Alaska is based on data from 1953 through 2000.