Average Monthly Temperatures for Each State in Summer

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The map here shows how summer temperatures compare across the American states. Below the map are the data it's based on. Plus there's a ranking of states in summer from hottest to coldest. For those who want to drill down deeper, the table also provides state-wide average temperatures for each summer month.

Summer temperature averages range from a high of 81.1 degrees Fahrenheit (27.3 degrees Celsius) in Louisiana and Texas to a low of 52.3 °F (11.3 °C) in Alaska. For the entire United States, excluding Hawaii and Alaska, the season averages 71.9 °F (22.2 °C).

The temperatures are based on data collected by weather stations throughout each state during the years 1971 to 2000 and made available by the NOAA National Climatic Data Center of the United States.

USA state map of average summer temperatures

The average temperatures during summer for every state in the US are listed below in degrees Fahrenheit and Celsius. The tables provide state-wide temperatures for each summer month, June, July and August, plus an average for the entire season. The states are also ranked from the hottest state in summer at number 1 to the coldest state at number 50.

Average temperature for each state during summer.
Summer Average Rank State JunJulAug
° F ° C     °F °F °F
78.625.98Alabama778079
52.311.350Alaska505552
78.125.610Arizona768079
78.826.06Arkansas768179
73.423.017California707575
65.218.442Colorado626866
69.220.731Connecticut667270
74.223.416Delaware727775
81.027.23Florida808282
78.725.97Georgia778079
72.222.322Hawaii717273
63.717.646Idaho596665
73.423.017Illinois727573
72.422.421Indiana717472
71.622.025Iowa707471
76.424.711Kansas737977
74.523.615Kentucky727675
81.127.31Louisiana808282
63.717.646Maine616664
73.322.919Maryland717574
68.020.035Massachusetts657069
66.219.040Michigan646867
66.819.336Minnesota656967
79.526.45Mississippi788180
75.424.114Missouri737876
Summer Average Rank State JunJulAug
° F ° C     °F °F °F
64.217.9 44 Montana616666
71.822.124Nebraska697472
69.020.632 Nevada657270
65.518.641New Hampshire 636866
72.222.3 22New Jersey697573
71.421.9 26New Mexico707371
66.519.239New York646967
75.724.312North Carolina747876
66.619.238North Dakota646967
70.921.627Ohio697371
79.626.44Oklahoma778281
63.717.646Oregon606666
68.620.334Pennsylvania667169
68.820.433Rhode Island657170
78.425.89South Carolina768079
69.921.129South Dakota677371
75.624.213 Tennessee747776
81.127.31Texas798281
69.620.930Utah667371
65.118.443Vermont636765
73.222.920Virginia717574
63.817.745Washington606666
70.221.228West Virginia687271
66.819.336Wisconsin656967
63.517.549Wyoming606665
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