Colorado Water Science Center

Colorado Annual Water-Data Reports

Colorado Water-resources data were published annually for use by engineers, scientists, managers, educators, and the general public. These links to archival products supplement direct access to current and historical water data provided by the National Water Information System (NWIS). Beginning with Water Year 2005, Colorado annual water-data reports were published online .

Water Year Link to Annual Data Report    
2014 - Present Select Site and Water-Year Summary      
2005 - 2013 Select State or Site ID      
2004 All CO      
2003 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
2002 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
2001 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
2000 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1999 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1998 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1997 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1996 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1995 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1994 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1993 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1992 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1991 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1990 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1989 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1988 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1987 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1986 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1985 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1984 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1983 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1982 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1981 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1980 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1979 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1978 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1977 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin above Dolores River Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin  
1976 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1975 Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin Volume 2. Colorado River Basin    
1974 Part 1. Surface Water Records Part 2. Water Quality Records    
1973 Part 1. Surface Water Records Part 2. Water Quality Records    
1972 Part 1. Surface Water Records Part 2. Water Quality Records    
1971 Part 1. Surface Water Records Part 2. Water Quality Records    
1970 Part 1. Surface Water Records Part 2. Water Quality Records    
1969 Part 1. Surface Water Records Part 2. Water Quality Records    
1968 Part 1. Surface Water Records Part 2. Water Quality Records    
1967 Part 1. Surface Water Records Part 2. Water Quality Records    
1966 Part 1. Surface Water Records Part 2. Water Quality Records    
1965 Part 1. Surface Water Records Part 2. Water Quality Records    
1964 Part 1. Surface Water Records Part 2. Water Quality Records    
1963 All CO      
1962 All CO      
1961 All CO      
Water Supply Paper Compilation Reports
Prior to 1961, data were summarized in USGS Water Supply Paper compilation reports; however, individual water year Water Supply Papers are available for some years. The individual water year, Water Supply Papers contain more detailed information and daily mean discharge data for a given site and water year. The Water Supply Paper compilation reports refer to the specific, individual Water Supply Papers. Daily mean discharge data can also be retrieved directly from NWIS.
1951 - 1960 Missouri River Basin blw Sioux City, Iowa Lower Mississippi River Basin Western Gulf of Mexico Basins Colorado River Basin
1890 - 1950 Missouri River Basin blw Sioux City, Iowa Lower Mississippi River Basin Western Gulf of Mexico Basins Colorado River Basin