Relative Humidity in July at US Cities

The average humidity in July is listed here for the largest cities in the United States. The tables below give this month's daily averages along with morning and afternoon relative humidity levels.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold.

For each city, the Daily number gives the average of humidity readings taken every three hours throughout the day. Morning values are recorded between 4 and 6 am local standard time, when usually temperatures are coolest and humidity highest. Afternoon humidity percentages are readings taken between 3 and 5 pm local standard time, when normally the day's temperature peaks and relative humidity reaches its lowest point. All the figures are averages for the years 1961 to 1990.

Average Relative Humidity (%) in July
Daily	City	Morning	Afternoon
74	Atlanta, Georgia	89	58
65	Austin, Texas	88	44
69	Baltimore, Maryland	84	53
74	Birmingham, Alabama	88	57
68	Boston, Massachusetts	80	58
68	Buffalo, New York	83	54
72	Charlotte, North Carolina	86	55
69	Chicago, Illinois	82	54
72	Cincinnati, Ohio	86	55
70	Cleveland, Ohio	85	56
71	Columbus, Ohio	86	54
60	Dallas, Texas	81	42
48	Denver, Colorado	68	34
69	Detroit, Michigan	85	52
39	Fresno, California	55	21
70	Grand Rapids, Michigan	82	55
68	Hartford, Connecticut	86	51
65	Honolulu, Hawaii	70	53
74	Houston, Texas	93	55

Daily	City	Morning	Afternoon
73	Indianapolis, Indiana	88	56
78	Jacksonville, Florida	91	64
67	Kansas City, Missouri	84	51
21	Las Vegas, Nevada	29	15
77	Los Angeles, California	86	68
71	Louisville, Kentucky	85	55
69	Memphis, Tennessee	84	54
75	Miami, Florida	86	66
72	Milwaukee, Wisconsin	82	60
65	Minneapolis, Minnesota	80	50
73	Nashville, Tennessee	89	55
79	New Orleans, Louisiana	92	66
64	New York, New York	75	53
61	Oklahoma City, Oklahoma	80	44
78	Orlando, Florida	92	64
70	Philadelphia, Pennsylvania	85	54
32	Phoenix, Arizona	45	20
69	Pittsburgh, Pennsylvania	84	53

Daily	City	Morning	Afternoon
63	Portland, Oregon	80	44
71	Providence, Rhode Island	85	58
76	Raleigh, North Carolina	92	58
75	Richmond, Virginia	91	57
70	Rochester, New York	87	53
53	Sacramento, California	76	28
36	Salt Lake City, Utah	52	22
65	San Antonio, Texas	87	44
75	San Diego, California	82	66
73	San Francisco, California	86	59
65	Seattle, Washington	81	49
68	St. Louis, Missouri	85	52
77	Tampa, Florida	88	65
42	Tucson, Arizona	52	29
64	Tulsa, Oklahoma	82	54
73	Virginia Beach, Virginia	86	60
67	Washington, DC	80	53

Average Relative Humidity in July at US Cities

Reference

More US City Weather Information