Relative Humidity in January at US Cities

The average humidity in January 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 January
Daily	City	Morning	Afternoon
68	Atlanta, Georgia	76	54
67	Austin, Texas	78	52
63	Baltimore, Maryland	69	54
71	Birmingham, Alabama	81	56
62	Boston, Massachusetts	66	57
76	Buffalo, New York	78	73
66	Charlotte, North Carolina	75	52
72	Chicago, Illinois	76	65
72	Cincinnati, Ohio	77	63
73	Cleveland, Ohio	76	68
71	Columbus, Ohio	76	64
68	Dallas, Texas	79	52
55	Denver, Colorado	63	49
75	Detroit, Michigan	79	67
83	Fresno, California	88	67
77	Grand Rapids, Michigan	82	73
64	Hartford, Connecticut	70	55
73	Honolulu, Hawaii	79	61
75	Houston, Texas	85	58

Daily	City	Morning	Afternoon
75	Indianapolis, Indiana	80	66
75	Jacksonville, Florida	86	56
69	Kansas City, Missouri	76	58
45	Las Vegas, Nevada	55	31
63	Los Angeles, California	70	59
69	Louisville, Kentucky	74	59
68	Memphis, Tennessee	76	57
73	Miami, Florida	83	59
72	Milwaukee, Wisconsin	76	67
70	Minneapolis, Minnesota	74	63
70	Nashville, Tennessee	80	58
76	New Orleans, Louisiana	84	63
62	New York, New York	66	55
67	Oklahoma City, Oklahoma	77	51
73	Orlando, Florida	86	53
66	Philadelphia, Pennsylvania	72	58
51	Phoenix, Arizona	66	32
70	Pittsburgh, Pennsylvania	74	63

Daily	City	Morning	Afternoon
81	Portland, Oregon	85	74
64	Providence, Rhode Island	70	56
67	Raleigh, North Carolina	76	52
68	Richmond, Virginia	78	53
74	Rochester, New York	77	69
83	Sacramento, California	90	70
74	Salt Lake City, Utah	78	69
67	San Antonio, Texas	79	50
63	San Diego, California	70	56
78	San Francisco, California	86	66
78	Seattle, Washington	81	74
73	St. Louis, Missouri	82	60
75	Tampa, Florida	86	57
48	Tucson, Arizona	56	31
67	Tulsa, Oklahoma	78	60
66	Virginia Beach, Virginia	72	57
62	Washington, DC	68	53

Average Relative Humidity in January at US Cities

Reference

More US City Weather Information