Country= U.S.A. Station= ANZALDUAS DAM, TX River= RIO GRANDE Area= 0.00 Lat= 26.13 Lon= -98.33 Source= USGS PointID= 8469200 Area Units= km2 Discharge Units= m3/sec Starting Year= 1939 Ending Year= 1993 Total Years= 55 Total Usable Years= 54 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1939 12.27 2.09 1.13 28.8 12.23 63.78 14.34 56.2 0.02 0.04 0.05 0.04 15.92 1940 0.28 5.76 0.21 0.08 5.43 5.49 0.48 6.73 4.11 0.03 8.13 2.9 3.3 1941 2.98 6.06 6.24 9.82 231.19 254.16 173.26 99.79 209.52 289.23 39.55 18.48 111.69 1942 12.82 9 12.79 169.29 109.47 57.24 15.3 13.27 132.51 41.81 9.53 3.85 48.91 1943 15.31 2.6 1.62 0.92 4.4 0.38 10.22 1.32 0.02 0.03 0.04 2.44 3.28 1944 10.86 5.12 1.42 1.74 23.75 28.07 17.13 7.19 23.98 3.86 0.83 15.03 11.58 1945 10.84 3.12 2.24 0.77 0.18 0.48 0 16.59 0.6 5.83 0.03 0.23 3.41 1946 1.47 0.94 0.05 0.04 15.38 8.65 0.02 8.33 49.89 118.37 3.12 5.51 17.65 1947 8.37 1.18 7.11 7.33 30.4 5.52 8.08 0.05 0.01 0.02 0.11 0.13 5.69 1948 0.49 4.32 8.19 0.07 0.92 74.43 2.67 33.58 0.5 0.03 3.88 0.39 10.79 1949 0.54 3.94 1.48 3.08 104.81 71.18 27.21 16.21 7.66 1.63 0.33 0.84 19.91 1950 2.1 1.57 0.07 0.11 2.18 13.65 108.97 35.92 52.56 2.09 0.52 3.43 18.6 1951 5.08 8.03 2.97 1 88.31 33.02 21.63 0.9 3.17 0.98 4.19 1.45 14.23 1952 1.71 0.84 0.56 0.56 0.04 0.01 0.97 9.24 1.05 0.05 0.06 1.02 1.34 1953 4.31 1.35 0.75 0.04 0.16 3.44 25.56 29.11 0.02 12.33 2.03 1.01 6.68 1954 4.86 3.45 2.05 3.77 35.95 0.09 11.42 5.52 0.11 17.72 0.12 0.14 7.1 1955 1.13 0.99 0.08 0.11 79.71 28.06 12.95 7.09 4.11 0.99 0.09 0.1 11.28 1956 0.48 2.12 0.16 0.08 24.86 11.83 5.59 0.3 0.01 0.03 0.06 0.06 3.8 1957 0.04 0.98 3.9 11.02 58.84 19.12 6.38 42.89 6.79 6.59 2.96 1.32 13.4 1958 3.95 3 7.33 4.98 25.04 27.72 123.4 31.49 32.49 0.1 0.43 0.92 21.74 1959 1.53 0.8 0.16 0.98 10.26 4.22 15.07 28.07 2.31 1.16 0.7 19.64 7.08 1960 13.7 10.76 3.42 0.5 0.06 59.8 103.65 49.95 13.61 37.29 2.06 4.39 24.93 1961 2.07 3.47 16.75 5.6 3.03 13.19 12.98 4.98 8.56 0.94 6.68 8.83 7.26 1962 5.27 3.53 0.55 2.63 0.01 3.18 8.89 27.81 1.61 0.4 0.55 1.91 4.69 1963 1.04 2.79 0.75 0.12 0.52 6.65 0.68 2.43 5.05 0.02 0.03 0.21 1.69 1964 0.85 4.6 0.49 0.03 0.62 5.01 0 0 0.13 0.06 2.03 2.68 1.38 1965 1.57 1.45 2.37 0.22 3.27 29.85 0.08 2.54 0.79 1.2 0.65 1.38 3.78 1966 1.04 2.43 0.72 0.44 0.04 0.01 1.67 0.75 2.5 0.04 0.14 0.63 0.87 1967 1.7 1.14 0.65 1.02 6.21 2.91 4.72 0.74 0.63 0.14 0.39 1.27 1.79 1968 2.33 1.79 1.72 0.11 3.97 10.8 1.04 0.78 0.09 12.05 0.99 1.29 3.08 1969 2.41 3.29 4.62 1.01 15.57 6.35 0.35 1.23 3.61 0.89 1.21 2.17 3.56 1970 1.44 1.57 2.35 2.32 0.19 0.08 0 0 7.54 0.33 0.7 1.34 1.49 1971 1.55 2.77 1.68 0.59 0.1 6.14 2.76 1.03 4.47 7.85 24.01 13.87 5.57 1972 8.28 4.14 1.23 0.53 1.46 0.67 0.38 1.49 0.55 0.1 0.91 0.92 1.72 1973 1.04 2.21 13.4 15.73 1.95 0.24 0.53 0.06 0.03 0.06 0.31 0.82 3.03 1974 1.09 1.69 9.25 1.2 0.48 0.47 0.01 0.33 0.16 0.72 1.11 0.96 1.46 1975 2.37 3.24 1.98 1.83 2.86 1.72 2.27 1.33 0.02 0.01 0.7 1.13 1.62 1976 1.55 1.38 2.1 2.27 2.18 0.42 0.01 0.01 0.35 0.43 0.83 0.94 1.04 1977 0.88 1.76 1.08 3.24 28.95 9.39 0.06 2.53 1.07 0.38 0.95 0.97 4.27 1978 0.93 3.21 1.93 1.29 14.95 19.11 0.17 0.8 2.03 0.35 0.89 1.33 3.92 1979 3.1 2.11 5.63 1.47 10.38 5.64 1.44 0.24 0.26 0.11 1.49 1.28 2.76 1980 2.18 2.95 2.54 3.87 7.73 0.79 0.02 0 0 0.02 0.27 0.79 1.76 1981 1.09 1.05 2.14 1.57 0.87 3.3 0.05 0.39 0.53 2.01 2.38 1.67 1.42 1982 1.62 2.89 2.61 1.28 6.16 8.33 1.51 1.84 0.53 0.45 0.95 1.47 2.47 1983 1.75 3.81 5.05 3.33 2.54 14.28 0.53 0.02 0 0.1 0.63 0.67 2.73 1984 1.92 1.78 2.22 2.59 1.31 1.36 0.14 0.13 0.02 0.77 1.25 2.38 1.32 1985 2.02 2.83 4.97 4.75 4.17 2.31 0.18 0.31 0.24 5.83 2.28 2.37 2.69 1986 2.4 2.62 1.76 0.81 0.8 2.07 0.87 1.26 0.95 1.84 3.27 2.55 1.77 1987 3.07 3.46 4.67 2.14 4.42 5.81 2.41 0.45 2.46 1.62 1.6 2.4 2.88 1988 4.93 3.16 7.82 7.81 4.82 4.72 3.71 0.82 1.27 1.05 1.13 1.5 3.56 1989 1.78 1.94 2.18 1.51 6.97 8.79 1.9 1.45 0.96 0.85 1.17 1.48 2.58 1990 2.81 3.76 3.99 3.33 2.69 0.93 0.04 0.19 0.07 0.62 0.91 0.9 1.69 1991 1.52 1.51 1.43 1.16 1.32 5.14 1.16 0.63 0.66 0.34 1.48 3.43 1.65 1992 3.65 2.58 2.04 4.39 2.25 5.46 1.2 0.59 0.34 0.29 0.91 2.55 2.19 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 3.45 2.98 3.27 6.02 18.64 17.69 14 10.31 10.97 10.78 2.62 2.8 8.63 Std Dev 3.7 1.97 3.52 22.91 38.87 37.47 33.6 18.58 33.99 42.02 6.21 4.26 16.39