Average Annual Precipitation for Oklahoma

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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.

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