Country= U.S.A. Station= LIBBY DAM, NEAR LIBBY, MT. River= KOOTENAI RIVER Area= 44053550.37 Lat= 48.4 Lon= -115.32 Source= USGS PointID= 12301933 Area Units= km2 Discharge Units= m3/sec Starting Year= 1961 Ending Year= 1980 Total Years= 20 Total Usable Years= 19 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1961 184.73 227.85 411.24 380.68 261.19 192.77 194.96 154.99 129.08 91.17 146.04 365.62 228.36 1962 464.31 406.65 391.78 312.37 235.11 222.03 214.64 188.42 186.86 176.06 63.42 22.97 240.39 1963 65.22 66.08 204.64 101.31 127.03 113.89 141.07 101.84 131.75 118.64 44.98 87.7 108.68 1964 158.15 151.19 288.52 360.09 307.48 188.21 188.84 219.23 144.38 127.82 188.27 391.7 226.16 1965 342.73 390.53 340.8 370.52 213.64 136.52 116.71 88.25 87.07 141.42 42.36 46.48 193.09 1966 47.55 260.12 197.74 92.15 203.26 182.57 92.82 90.61 57 94.38 61.2 127.38 125.56 1967 121.67 57.16 138.21 130.54 239.63 125.43 164.05 207.25 136.64 166.21 99.13 177.19 146.93 1968 349.91 263.76 305.11 304.13 302.88 215.43 190.03 139.09 142.74 195.41 140.79 370.77 243.34 1969 264.8 421.92 234.15 355.04 261.72 200.17 177.36 170.37 161.15 162.95 139.73 227.76 231.43 1970 255.31 250.93 354.28 302.81 280.8 245.71 217.79 209.94 202.2 201.46 204.36 166.15 240.98 1971 196.66 263.84 343.37 215.87 143.42 174.19 146.59 136.54 136.96 136.16 91.92 69.79 171.28 1972 172.83 88.78 104.79 88.62 82.05 70.96 101.84 154.75 127.44 125.12 288.12 397.75 150.25 1973 448.41 428.8 668.1 497.81 619.5 330.16 263.85 269.09 241.26 205.81 238.3 427.13 386.52 1974 639.6 511.02 402.92 304.83 383.68 478.65 303.67 278.81 245.57 254.98 243 235.52 356.85 1975 351.47 503.54 511.44 446.18 327.53 250.61 224.7 235.69 190.43 186.92 241.09 239.93 309.13 1976 228.94 258.02 345.71 155.27 150.18 145.11 121.34 104.67 111.71 152.64 137.49 43.28 162.86 1977 93.48 68.74 197.1 138.46 115.72 137.84 107.84 52.01 136.38 191.38 214.84 348.85 150.22 1978 279.93 243.08 193.98 110.54 306.86 232.25 213.92 180.64 173.55 132.68 142.23 242.79 204.37 1979 400.74 356.09 401.83 462.61 428.96 347.05 290.89 284.48 245.46 256.79 258.12 396.99 344.17 1980 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 266.65 274.64 317.67 269.99 262.67 209.98 182.78 171.93 157.24 164.11 157.13 230.83 222.14 Std Dev 149.14 141.17 132.74 132.63 122.79 92.46 60.66 66.18 50.24 45.81 75.24 135.41 77.58