Average Temperatures for Large US Cities in July





Average temperatures for the month of July in the largest US cities are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

July is the hottest month of the year for most large US cities. Daytime temperatures above 80 degrees Fahrenheit (27 degrees Celsius) regularly occur nearly everywhere. The exceptions are cities along the Pacific coast. Seattle, San Francisco and San Diego stay cooler than elsewhere.

Phoenix and Las Vegas top the list this month of the hottest major cities in the United States with July temperatures averaging highs of well over 100 °F (38 °C) by day and nights that usually remain above 80 degrees F.

Average July temperatures for US cities.
High °F Low °F City High °C Low °C
90 72 Atlanta, Georgia 32 22
97 75 Austin, Texas 36 24
89 68 Baltimore, Maryland 32 20
91 72 Birmingham, Alabama 33 22
82 66 Boston, Massachusetts 28 19
80 63 Buffalo, New York 27 17
90 70 Charlotte, North Carolina 32 21
85 68 Chicago, Illinois 30 20
86 66 Cincinnati, Ohio 30 19
84 65 Cleveland, Ohio 29 19
85 65 Columbus, Ohio 30 19
97 78 Dallas, Texas 36 25
90 59 Denver, Colorado 32 15
84 64 Detroit, Michigan 29 18
85 63 Hartford, Connecticut 30 17
93 77 Houston, Texas 34 25
85 66 Indianapolis, Indiana 30 19
High °F Low °F City High °C Low °C
92 76 Jacksonville, Florida 33 24
88 68 Kansas City, Missouri 31 20
105 82 Las Vegas, Nevada 40 28
82 65 Los Angeles, California 28 18
89 71 Louisville, Kentucky 32 22
92 74 Memphis, Tennessee 33 23
91 78 Miami, Florida 33 25
82 65 Milwaukee, Wisconsin 28 18
83 65 Minneapolis, Minnesota 29 19
91 71 Nashville, Tennessee 33 21
91 77 New Orleans, Louisiana 33 25
85 70 New York, New York 29 21
93 70 Oklahoma City, Oklahoma 34 21
92 75 Orlando, Florida 33 24
88 70 Philadelphia, Pennsylvania 31 21
107 85 Phoenix, Arizona 41 29
83 63 Pittsburgh, Pennsylvania 28 17
High °F Low °F City High °C Low °C
82 57 Portland, Oregon 28 14
84 65 Providence, Rhode Island 29 18
91 70 Raleigh, North Carolina 33 21
90 69 Richmond, Virginia 32 21
93 64 Riverside, California 34 18
83 62 Rochester, New York 28 17
94 61 Sacramento, California 35 16
94 68 Salt Lake City, Utah 34 20
95 75 San Antonio, Texas 35 24
75 66 San Diego, California 24 19
66 54 San Francisco, California 19 12
81 58 San Jose, California 27 15
77 57 Seattle, Washington 25 14
90 71 St. Louis, Missouri 32 22
91 77 Tampa, Florida 33 25
89 73 Virginia Beach, Virginia 32 23
90 72 Washington, DC 32 22
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

US City Temperatures
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