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 Owyhee Project 
 Water Data

Owyhee Project  -  Main Page

Project Water Supply

Normal

11.07 in  

Maximum  -  1983

20.03 in  

Minimum   -  1966

5.89 in  

Payette, Idaho 1961-1990

 

      Temperature

Mean Annual

51.4 °F  

Daily Maximum  -  07/12/1967

109 °F  

Daily Minimum   -  01/22/1962

-26 °F  

Payette, Idaho 1948-1996

 

Growing Season

192 days  

Elevation of irrigable area

2,250 - 2,500 ft  

      Owyhee River

Drainage area above Owyhee Reservoir

10,400 mi2  

Annual discharge:

 

   Maximum   -  1943

1,078,732 acre-ft  

   Minimum    -  1931

151,307 acre-ft  

   Average     -  1930-1952

634,110 acre-ft  

                              Streamflows:  Owyhee River above Owyhee Reservoir, Oregon (USGS)

Drainage area above Owyhee Dam

11,160 mi2  

Annual discharge

 

   Maximum   -  1984

2,187,767 acre-ft  

   Minimum    -  1948

150,009 acre-ft  

   Average     -  1932-1996

302,179 acre-ft  

Project Water Quality

 

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