Average Annual Precipitation for Oklahoma





The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Oklahoma.

Each place has a total for the amount of precipitation it usually receives in a year. Most locations also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

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

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

Eastern Oklahoma

Average yearly precipitation
Days Place Inches Milli­metres
91 Bartlesville 40.4 1027
90 Hugo 47.8 1213
96 Idabel 51.9 1317
79 Lake Eufaula 47.4 1203
99 McAlester 42.0 1068
84 Miami 44.1 1119
Muskogee 45.3 1150
93 Tulsa 40.9 1040
100 Webbers Falls 45.7 1160

Central Oklahoma

Annual averages for rainfall plus snowfall
Days Place Inches Milli­metres
83 Ada 41.8 1060
65 Ardmore 37.6 956
77 Chickasha 36.9 936
83 Enid 34.2 870
69 Great Salt Plains Lake Dam 32.8 832
75 Guthrie 38.4 975
86 Norman 38.9 988
84 Oklahoma City 36.5 928
84 Ponca City 34.8 885
Stillwater 38.4 974

Western Oklahoma

Average amount of rain and snow a year
Days Place Inches Milli­metres
71 Altus 28.6 726
69 Altus Lake Dam 30.2 768
60 Beaver 22.0 559
71 Elk City 29.9 759
59 Kenton 18.0 458
71 Lawton 32.9 834
53 Reydon 25.4 644
58 Wichita Mountains Wildlife Refuge 35.9 912
Reference

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

Oklahoma Precipitation
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