Country= U.S.A. Station= MOORHEAD, MT. River= POWDER RIVER Area= 26132087.18 Lat= 45.07 Lon= -105.87 Source= USGS PointID= 6324500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1930 Ending Year= 1996 Total Years= 67 Total Usable Years= 62 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1930 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1931 0.84 1.96 0.73 0.09 0 1.34 0 1.32 0 0 0 0 0.52 1932 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1933 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1934 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1935 0 0.1 2.16 1.45 0.48 0.05 5.66 0.04 0 0 0 0 0.83 1936 0 0 32.14 11.91 8.81 3.57 0.03 0.01 0 0 0 0 4.71 1937 0 0 4.48 3.97 1.8 21.63 4.73 0 0.03 1.6 0 0.49 3.23 1938 2.81 10.35 7.69 2.93 13.15 48.28 36.69 3.24 0.85 2.09 3.46 2.3 11.15 1939 2.18 2.48 16.85 5.55 3.53 16.56 2.13 0.01 0 0 0 0 4.11 1940 0 0.69 3.96 1.55 0.42 1.01 0 0 0 0 0 0 0.64 1941 0 0.34 1.24 0.18 0.43 11.74 1.3 0.12 7.89 3.88 1.89 3.75 2.73 1942 4.57 4.29 16.72 8.32 42.58 95.23 14.11 8.82 3.97 4.44 4.86 3.8 17.64 1943 2.29 35.15 20.54 29.56 27.52 83.56 12.81 3.06 1.42 1.99 3.75 3.15 18.73 1944 2.41 2.27 2.69 3.16 3.1 89.84 31.36 7.62 1.83 2.32 3.22 3.39 12.77 1945 3.26 5.96 9.81 3.16 1.96 21.56 3.59 0.77 0.22 0.17 1.94 1.27 4.47 1946 2.1 5.23 7.69 5.7 2.34 8.01 5.97 0.55 1.18 2.12 1.51 3.81 3.85 1947 3.14 3.79 25.01 17.43 20.88 16.76 3.03 1.58 0.61 1 1.39 3.38 8.17 1948 2.65 2.89 5.66 7.9 17.79 72.25 42.88 5.11 1.1 1.03 2.44 2.14 13.65 1949 1.14 1.45 29.26 19.32 17.33 11.69 3.3 0.27 0.9 0.59 1.38 0.86 7.29 1950 0.5 1.85 15.07 14.69 20.4 35.26 11.63 4.06 2.82 2.08 2.47 7.03 9.82 1951 4.72 4.1 16.94 15.11 13.61 15.89 2.47 3.09 8.09 5.57 5.53 3.76 8.24 1952 2.81 3.99 17.43 28.4 31.81 12.34 4.98 1.59 1.62 0.57 1.03 1.44 9 1953 1.79 1.73 3.23 1.18 6.52 46.22 2.61 1.66 0.5 0.05 0.44 1.16 5.59 1954 0.51 3.57 1.95 2.32 3.8 2 0.06 7.6 0.56 0.38 1.01 0.48 2.02 1955 0.3 0.46 1.04 10.74 2.62 2.85 1.39 0.24 0.18 0.09 0.27 1.08 1.77 1956 1.09 0.79 10.71 4.3 11.83 10.41 1.59 1.87 0.82 0.1 1.03 0.96 3.79 1957 0.59 1.43 2.84 1.51 8.36 28.11 7.95 0.57 4.25 2.96 4.4 2.48 5.45 1958 2.72 3.17 4.35 3.16 1.97 4.95 3.22 0.91 1.71 1.2 1.64 1.26 2.52 1959 1.01 1.33 48.09 5.42 3.53 13.29 4.04 1.33 2.02 1.64 1.42 1.84 7.08 1960 1.15 2.32 13.03 3.58 2.76 1.53 0.59 1.17 0.45 0.32 0.73 0.73 2.36 1961 0.5 1.04 0.53 0.65 0.36 0.28 0 0 0.48 0.03 0.5 0.17 0.38 1962 0.06 0.88 3.5 1.34 25.18 45.42 12.28 1.97 1.97 1.55 2.27 2 8.2 1963 0.62 12.36 5.02 2.41 6.15 16.54 2.96 2.17 2.1 0.8 1.22 0.84 4.43 1964 0.58 0.88 1.4 1.73 13.69 53.08 15.92 7.43 4.43 1.78 2 1.4 8.69 1965 4.93 18.68 12.36 26.33 27.49 23.06 10.63 3.7 9.38 7.14 3.95 3.51 12.6 1966 3.35 2.73 19.26 10.24 7.4 2.45 3.63 2.05 1.91 1.9 1.15 1.27 4.78 1967 1.46 2.09 3.92 3.63 13.7 140.64 31.02 5.5 5.06 3.77 3.78 2.34 18.08 1968 2.69 6.54 12.08 9.16 10.05 60.79 13.77 8.07 5.15 3.21 5.85 4.59 11.83 1969 3.42 4.1 28.5 23.18 6.7 11.15 22.52 2.54 3.15 2.89 2.38 1.96 9.37 1970 1.13 3.2 6.68 4.88 79.16 45.89 5.74 3.03 4.12 2.74 2.53 2.31 13.45 1971 1.84 52.61 18.09 15.44 14.93 7.64 3.47 1.58 5.57 2.85 2.7 1.62 10.69 1972 1.85 11.7 39.77 6.46 11.69 13.41 2.79 7.83 4.19 2.84 2.18 1.01 8.81 1973 1.29 2.48 3.38 8.09 10.31 3.92 1.26 0.4 1.44 1.35 2 1.76 3.14 1974 4.89 3.64 3.21 2.92 7.77 18.64 3.08 3.71 4.5 2.21 3.01 2.26 4.99 1975 1.45 2.29 6.31 36.04 106.81 97.73 60.96 13.17 7.98 8.6 7.93 7.13 29.7 1976 8.78 9.22 9.81 8.86 47.38 20.82 6.78 4.6 4.91 2.93 3.78 5.4 11.11 1977 3.36 6.36 4.84 3.95 3.54 1.97 0.68 0.57 2.02 1.63 1.2 2.2 2.69 1978 1.81 2.23 131.9 37.25 74.58 41.82 42.94 8.2 20.74 8.3 7.73 7.87 32.11 1979 5.5 6.35 126.48 54.29 43.23 33.77 8.66 6.4 4.52 3.4 4.55 4.41 25.13 1980 2.97 4.6 10.47 6.71 5.31 27.56 4.65 4.8 2.74 4.34 4.16 1.61 6.66 1981 4.06 6.19 3.99 1.61 66.92 49.96 8.29 6.11 2.79 2.58 3.65 2.95 13.26 1982 1.49 17.95 11.45 14.62 17.33 71.8 25.61 6.8 8.21 7.29 4.57 3.58 15.89 1983 6.22 8.27 6.23 4.52 8.43 4.18 1.84 2.92 3.11 2.99 2.53 1.09 4.36 1984 10.48 6.2 4.33 3.48 3.19 5.54 0.37 1.31 4.25 1.79 1.37 0.95 3.61 1985 0.52 0.24 2.7 2.82 0.47 0.82 0 2.4 0.5 1.15 0.67 0.73 1.09 1986 2.76 17.95 8.73 3.83 24.12 6.85 3.22 2.55 22.29 4.87 2.19 1.96 8.44 1987 1.15 0.59 3.2 2.84 6.49 1.87 3.9 2.39 1.09 1.69 1.97 1.14 2.36 1988 0.78 0.96 2.64 1.06 7.11 0.11 0 0.12 0.03 0.01 0.21 0.3 1.11 1989 0.25 0.3 17.22 5.76 8.65 2.86 0.13 0.05 0.9 1.21 1.36 1.26 3.33 1990 1.44 2.69 2.94 1.92 7.03 4.07 0.17 4.58 0.88 0.74 0.95 0.4 2.32 1991 0.17 0.43 1.27 4.99 26.86 45.61 11.51 3.91 3.17 1.64 0.92 1.48 8.5 1992 1.03 1.6 1.86 1 0.67 7.56 1.8 0.88 0.92 1.43 1.47 0.95 1.76 1993 0.82 1.11 17.06 2.87 2.08 6.19 49.62 24.65 17.96 13.52 9.54 6.29 12.64 1994 4.09 3.67 39.69 7.69 19.43 10.92 3.7 1.01 2.19 2.89 2.45 1.88 8.3 1995 2.12 1.6 2.37 2.39 15.44 28.36 10.25 2.23 4.16 4.66 3.89 2.89 6.7 1996 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 2.17 5.25 14.43 8.67 16.11 25.63 9.39 3.33 3.42 2.4 2.39 2.16 7.95 Std Dev 2.04 8.38 23.42 10.42 20.73 29.56 13.26 3.93 4.48 2.47 2 1.81 6.67