Average Rainfall for Oklahoma in September

The tables below give monthly averages for rainfall during September at cities, communities and other locations around Oklahoma.

Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The rainfall totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

You can jump to a separate table for each region of the state: Eastern, Central and Western Oklahoma.

Eastern Oklahoma

Average monthly precipitation in September
Days Place Inches Milli­metres
8 Bartlesville 3.4 87
6 Idabel 4.3 109
7 McAlester 3.7 93
8 Muskogee 4.3 109
8 Tulsa 3.9 98
7 Webbers Falls 4.4 112

Central Oklahoma

September averages for total rainfall
Days Place Inches Milli­metres
7 Ada 4.3 110
5 Ardmore 3.6 91
7 Chickasha 3.7 94
7 Enid 2.7 69
5 Great Salt Plains Lake Dam 2.8 70
7 Guthrie 3.5 90
7 Norman 3.7 93
7 Oklahoma City 3.7 94
7 Ponca City 2.7 70
7 Shawnee 3.7 93
7 Stillwater 2.9 75

Western Oklahoma

Average amount of rain in September
Days Place Inches Milli­metres
6 Altus 2.6 65
6 Altus Lake Dam 3.0 75
5 Beaver 1.4 37
7 Elk City 2.8 71
6 Lawton 3.1 79
6 Wichita Mountains Wildlife Refuge 3.4 85
Reference

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

Oklahoma Precipitation
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