Average Temperatures for Large US Cities in August

Average temperatures for the month of August 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.

Hot weather descends in August upon many of America's large cities where daily temperatures average highs of 80 to 90 degrees Fahrenheit (27 to 32 degrees Celsius). The hottest, Phoenix and Las Vegas, usually get over 100 °F (38 °C) each day. The coolest cities during August are along the Pacific coast, notably Seattle, San Francisco and San Diego.

Average August temperatures for US cities.
High °F	Low °F	City	High °C	Low °C
89	71	Atlanta, Georgia	32	22
98	75	Austin, Texas	37	24
87	66	Baltimore, Maryland	30	19
91	71	Birmingham, Alabama	33	22
80	65	Boston, Massachusetts	27	18
79	62	Buffalo, New York	26	17
89	69	Charlotte, North Carolina	31	20
83	67	Chicago, Illinois	28	19
85	65	Cincinnati, Ohio	30	18
82	64	Cleveland, Ohio	28	18
84	64	Columbus, Ohio	29	18
97	77	Dallas, Texas	36	25
88	57	Denver, Colorado	31	14
81	63	Detroit, Michigan	27	17
97	68	Fresno, California	36	20
81	61	Grand Rapids, Michigan	27	16
83	62	Hartford, Connecticut	29	17
89	76	Honolulu, Hawaii	32	24
94	77	Houston, Texas	34	25

High °F	Low °F	City	High °C	Low °C
84	65	Indianapolis, Indiana	29	18
91	76	Jacksonville, Florida	33	25
87	66	Kansas City, Missouri	31	19
103	81	Las Vegas, Nevada	39	27
84	65	Los Angeles, California	29	19
88	70	Louisville, Kentucky	31	21
92	73	Memphis, Tennessee	33	23
91	78	Miami, Florida	33	25
80	64	Milwaukee, Wisconsin	27	18
81	63	Minneapolis, Minnesota	27	17
90	69	Nashville, Tennessee	32	21
91	77	New Orleans, Louisiana	33	25
83	69	New York, New York	29	21
92	69	Oklahoma City, Oklahoma	33	21
92	75	Orlando, Florida	33	24
86	68	Philadelphia, Pennsylvania	30	20
105	84	Phoenix, Arizona	41	29
82	62	Pittsburgh, Pennsylvania	28	17

High °F	Low °F	City	High °C	Low °C
82	57	Portland, Oregon	28	14
82	64	Providence, Rhode Island	28	18
89	69	Raleigh, North Carolina	32	21
88	68	Richmond, Virginia	31	20
95	65	Riverside, California	35	18
81	61	Rochester, New York	27	16
94	61	Sacramento, California	34	16
92	67	Salt Lake City, Utah	33	19
96	75	San Antonio, Texas	36	24
77	68	San Diego, California	25	20
68	56	San Francisco, California	20	13
81	59	San Jose, California	27	15
78	57	Seattle, Washington	25	14
88	69	St. Louis, Missouri	31	21
91	77	Tampa, Florida	33	25
99	75	Tucson, Arizona	37	24
93	72	Tulsa, Oklahoma	34	22
87	72	Virginia Beach, Virginia	31	22
88	71	Washington, DC	31	22

Average Temperatures for Large US Cities in August

Reference

More US City Weather Information