Country= U.S.A. Station= GRAND JUNCTION, CO. River= GUNNISON RIVER Area= 20532.30 Lat= 38.98 Lon= -108.45 Source= USGS PointID= 9152500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1913 Ending Year= 1993 Total Years= 81 Total Usable Years= 55 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1913 106.11 124.58 148.02 220.43 220.28 164.31 110.66 78.68 62.61 61.59 77.09 91.15 122.13 1914 276.5 207.96 277.83 269.41 243.37 161.88 92.89 56.32 50.87 82.62 81.22 83.91 157.07 1915 96.43 163.97 161.75 203.05 166.96 135.24 71.48 42.14 37.54 45.16 67.24 102.93 107.82 1916 104.43 241.27 225.8 203.1 162.66 138.24 88.37 55.54 47.8 51.4 62.44 75.36 121.37 1917 84.06 108.27 119.45 191.21 221.73 175.68 86.13 51 43.17 50.51 46.25 122.73 108.35 1918 117.31 121.9 124.24 131.27 89.06 46.42 28.48 23.49 35.16 48.79 59.86 64.51 74.21 1919 97.13 152.04 153.94 219.1 134.37 82.53 56.61 43.2 37.77 45.85 54.55 72.35 95.79 1920 70.34 70.16 65.42 66.92 70.65 50.9 43.46 37.28 35.65 45.66 106.01 120.05 65.21 1921 188.96 258.2 258.57 209.22 196.34 145.19 64.04 39.34 43.06 52.42 68.43 105.55 135.78 1922 94.01 102.18 123.89 171.18 226.14 118.94 55.38 48.89 45.68 50.98 63.26 83.2 98.64 1923 154.14 116.71 77.38 85.74 81.69 77.14 55.34 56.38 51.69 64.16 65.78 69.91 79.67 1924 93.7 104.14 81.58 73.91 55.73 37.79 38.93 49.11 62.64 77 111.82 105.39 74.31 1925 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1926 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1927 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1928 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1929 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1930 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1931 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 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 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1936 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1937 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1938 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1939 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1940 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1941 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1942 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1943 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1944 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1945 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1946 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1947 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1948 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1949 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1950 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1951 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1952 147.07 279.89 236.05 353.21 279.34 163.29 82.72 63.35 69.03 80.85 78.33 100.3 161.12 1953 330.04 270.61 193.03 187.92 233.47 225.98 97.47 66.07 81.01 89.67 132.45 127.86 169.63 1954 197.84 254.94 274.09 256.43 174.41 113.19 59.76 61.69 70.24 78.19 90.91 83.34 142.92 1955 67.03 57.7 51.63 59.79 83.45 53.52 35.78 35.94 37.04 42.98 78.37 349.05 79.36 1956 434.53 252.9 316.14 353.4 303.04 178.67 79.93 65.3 69.28 110.98 125.29 131.56 201.75 1957 100.43 162.84 327.11 191.97 168.64 77.68 51.81 48.61 57.74 88.93 126.39 176.91 131.59 1958 236.75 509.19 326.28 293.52 250.36 191.43 88.89 70.88 70.6 77.73 109.14 117.45 195.18 1959 148.95 138.78 111.72 96.98 73.08 51.99 49.26 39.28 66.73 59.68 58.83 60.32 79.63 1960 56.82 120.18 124.87 113.36 97.8 77.01 36.17 36.02 41.34 46.95 82.16 118.19 79.24 1961 70.47 153.15 130.59 116.35 106.86 92.96 38.53 35.83 45.52 63.33 82.14 93.03 85.73 1962 75.2 108.38 94.6 146.05 91.7 56.8 31.55 33.68 43.12 127.13 128.72 215.4 96.03 1963 96.72 222.29 120.3 203.73 183.37 62.35 34.73 35.88 48.7 61.58 114.55 114.75 108.25 1964 150.67 108.83 91.81 131.45 80.59 70.66 34.05 32.95 42.6 55.06 65.47 574.28 119.87 1965 608.91 363.87 233.09 159.81 123.46 67.75 36.15 43 66.55 90.29 137.24 104.69 169.57 1966 134.22 84.3 122.89 168.5 105.42 53.68 30.89 33.26 41.72 51.52 77.59 146.77 87.56 1967 159.87 158.62 122.22 113.56 218.95 116.79 39.76 36.59 44.57 60.02 65.47 95.95 102.7 1968 98.61 171.61 131.48 78.63 67.17 41.54 27.63 26.73 33.95 46.97 57.83 80.31 71.87 1969 156.98 167.36 147.11 268.85 224.41 101.73 37.85 35.98 45.39 61.82 91.65 149.59 124.06 1970 423.2 261.25 197.37 85.12 99.11 63.13 31.66 34.06 42.39 49.25 157.97 213.12 138.14 1971 314.23 196.18 274.18 305.86 272.16 148.51 52.39 40 54.27 93.16 117.02 145.14 167.76 1972 230.61 191.46 541.4 180.49 136.13 69.31 33.33 37.2 53.8 62.08 93.84 131.57 146.77 1973 146.89 111.85 100.73 77.87 79.77 39.18 26.1 23.52 25.9 50.14 170.07 263.34 92.95 1974 530.09 219.98 336.83 394.64 214.6 124.76 49.71 40.02 46.33 59.36 93.56 108.4 184.86 1975 121.27 171.63 294.59 231.91 257.8 150.91 56.11 43.41 55.46 86.09 125.85 154.85 145.82 1976 123.43 121.6 124.11 93.78 87.61 44.84 29.7 41.07 47.82 60.9 96.44 66.27 78.13 1977 58.1 50.41 32.41 32.05 43.04 32.93 24.47 23.02 32.81 45.96 73.4 216.06 55.39 1978 233.95 187.33 188.32 174.79 121.02 63.88 39.1 36.6 51.57 47.21 57.72 66.88 105.7 1979 85.95 76.7 125.28 78.05 127.15 40.77 28.55 32.92 41.45 52.07 74.27 89.77 71.08 1980 249.55 198.63 173.15 116.55 107.82 58.72 34.78 34.79 43.13 45.87 50.08 80.9 99.5 1981 69.31 100.63 86.07 76.15 54.67 32.92 24.42 30.47 28.17 32.13 117.66 346.97 83.3 1982 193.41 418.77 313.38 274.13 160.73 86.23 76.64 37.68 45.69 68.14 111.69 217.22 166.98 1983 180.54 332.63 437.27 304.02 283.45 202.13 73.84 48.63 60.44 91.98 178.78 347.44 211.76 1984 207.11 184.17 254.35 230.43 199.19 107.05 37.66 35.22 54.56 108.02 216.74 160.07 149.55 1985 91.35 102.05 115.28 211 89.48 61.94 29.39 34.01 53.23 57.47 72.56 101.5 84.94 1986 119.58 390.05 340.64 142.33 95.06 53.1 30.8 34.8 48.02 63.71 69.57 79.61 122.27 1987 80.39 122.45 128.37 92.47 70.57 35.25 29.75 30.79 41.6 44.8 47.63 87.55 67.63 1988 89.77 99.17 86.6 62.36 56.15 54.95 25.23 31.27 32.37 35.5 63.37 59.86 58.05 1989 74.18 88.21 277.95 227.82 130.97 52.96 29.83 36.91 49.33 50.57 50.05 56.79 93.8 1990 91.85 75.33 102.34 77.82 57.96 50.52 26.79 29.92 34.75 43.09 47.07 56.81 57.85 1991 55.44 43.27 58.37 46.93 59.94 39.46 23.27 20.52 24.04 29.64 34.61 41.2 39.72 1992 39.87 41.52 38.9 60.06 36.4 23.19 16.93 12.34 17.1 30.87 37.03 43.49 33.14 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 161.59 172.49 181.15 168.2 142.93 89.96 47.46 40.6 47.42 61.85 89.12 133.43 111.35 Std Dev 118.72 98.2 106.11 88.1 73.79 51.3 22.82 13.02 12.92 20.85 37.59 94.73 42.34