Average Rainfall for Oklahoma in May

The tables below give monthly averages for rainfall during May 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 May
Days Place Inches Milli­metres
11 Bartlesville 5.7 144
10 Idabel 6.4 161
11 McAlester 5.3 135
11 Muskogee 5.3 133
11 Tulsa 5.7 146
11 Webbers Falls 5.9 151

Central Oklahoma

May averages for total rainfall
Days Place Inches Milli­metres
10 Ada 5.4 136
8 Ardmore 5.7 145
9 Chickasha 5.0 128
10 Enid 4.4 111
9 Great Salt Plains Lake Dam 4.8 121
9 Guthrie 5.1 129
10 Norman 5.1 131
10 Oklahoma City 5.3 135
10 Ponca City 5.1 130
10 Shawnee 5.7 146
12 Stillwater 4.7 120

Western Oklahoma

Average amount of rain in May
Days Place Inches Milli­metres
8 Altus 4.1 103
8 Altus Lake Dam 4.6 116
6 Beaver 2.5 63
9 Elk City 4.5 113
8 Lawton 5.0 126
8 Wichita Mountains Wildlife Refuge 4.8 121
Reference

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

Oklahoma Precipitation
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