Average Total Rainfall in US Cities During September





The tables below give monthly averages for rainfall during September at the largest cities in the United States.

Each place has a total for the amount of precipitation it usually receives this month along with information on the number of days with wet weather. The count of days includes those when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The rainfall totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

September rainfall averages by city
Days City Inches Milli­metres
8 Atlanta, Georgia 4.5 114
7 Austin, Texas 3.0 76
9 Baltimore, Maryland 4.0 102
7 Birmingham, Alabama 3.9 99
9 Boston, Massachusetts 3.4 87
11 Buffalo, New York 3.9 99
7 Charlotte, North Carolina 3.2 82
8 Chicago, Illinois 3.2 82
11 Cincinnati, Ohio 2.8 72
10 Cleveland, Ohio 3.8 97
8 Columbus, Ohio 2.8 72
5 Dallas, Texas 2.8 72
7 Denver, Colorado 1.1 27
10 Detroit, Michigan 3.3 83
10 Hartford, Connecticut 3.9 99
8 Houston, Texas 4.1 105
8 Indianapolis, Indiana 3.1 79
Days City Inches Milli­metres
12 Jacksonville, Florida 8.2 208
8 Kansas City, Missouri 4.2 106
2 Las Vegas, Nevada 0.3 6
1 Los Angeles, California 0.2 5
8 Louisville, Kentucky 3.1 77
7 Memphis, Tennessee 3.1 78
18 Miami, Florida 9.9 250
9 Milwaukee, Wisconsin 3.2 81
10 Minneapolis, Minnesota 3.1 78
8 Nashville, Tennessee 3.4 87
9 New Orleans, Louisiana 5.1 128
9 New York, New York 4.3 109
7 Oklahoma City, Oklahoma 4.1 103
13 Orlando, Florida 6.1 154
9 Philadelphia, Pennsylvania 3.8 96
3 Phoenix, Arizona 0.6 15
10 Pittsburgh, Pennsylvania 3.1 79
Days City Inches Milli­metres
7 Portland, Oregon 1.6 40
9 Providence, Rhode Island 3.9 100
7 Raleigh, North Carolina 4.4 112
8 Richmond, Virginia 4.1 105
1 Riverside, California 0.1 3
12 Rochester, New York 3.4 86
1 Sacramento, California 0.3 7
6 Salt Lake City, Utah 1.2 31
7 San Antonio, Texas 3.0 77
1 San Diego, California 0.2 4
1 San Francisco, California 0.2 4
1 San Jose, California 0.2 5
8 Seattle, Washington 1.3 33
7 St. Louis, Missouri 3.1 80
12 Tampa, Florida 6.3 160
9 Virginia Beach, Virginia 4.8 121
8 Washington, DC 3.7 94
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

US City Precipitation
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