Normal

9.29 in  

Maximum  -  1973

13.66 in  

Minimum   -  1988

6.04 in  

Boysen Dam, Wyoming 1961-1990

Mean Annual

47.2 °F  

Daily Maximum  -  07/04/1954

108 °F  

Daily Minimum   -  01/31/1979

-39 °F  

Boysen Dam, Wyoming 1948-1996

Growing Season

148 days  

Elevation of irrigable area

ft  

Drainage area above Boysen Dam

7,701 mi²  

Annual discharge:

   Maximum  -  1967

1,636,472 acre-ft  

   Minimum   -  1961

550,209 acre-ft  

   Average    -  1951-1997

1,023,263 acre-ft