Country= U.S.A. Station= HARDIN, MT. River= BIGHORN RIVER Area= 26105691.47 Lat= 45.72 Lon= -107.58 Source= USGS PointID= 6288500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1935 Ending Year= 1995 Total Years= 61 Total Usable Years= 60 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1935 90.99 120.63 143.01 203.42 272.02 390.14 188.53 105.52 108.85 120.17 86.92 88.14 159.86 1936 82.32 82.06 281.85 204.6 379.39 270.82 121.39 105.83 104.72 113.5 116.15 90.2 162.74 1937 77.35 74.15 156.89 182.51 177.63 274.47 158.07 83.85 88.2 119.55 66.03 40.69 124.95 1938 57.25 35.97 369.98 28.25 27.82 287.15 456.15 414.98 422.4 151.51 322.67 264.34 236.54 1939 129.29 107.77 285.75 391.41 410.02 397.33 228.45 182.77 104.48 90.3 115.5 58.39 208.46 1940 24.88 28.61 55.7 106.41 66.09 30.52 317.53 459.01 112.37 86.05 56.53 31.57 114.61 1941 31.15 31.15 69.22 270.1 103.06 37.45 295.95 314.35 88.18 29.35 31.2 28.52 110.81 1942 31.93 30.5 80.18 88.66 51.36 36.4 98.49 357.94 372.27 333.32 166.31 36.75 140.34 1943 28.32 28.7 23.06 16.5 28.93 19.39 27.29 411.82 533.11 541.86 398.51 377.53 202.92 1944 234.12 103.17 29.72 26.98 26.91 23.57 99.34 458.46 356.49 406.18 373.88 308.44 203.94 1945 301.45 33.4 30.15 24.24 29.2 30.16 32.93 265.16 507.35 417.27 137.81 42.18 154.28 1946 39.35 33.53 30.66 47.76 63.18 63.31 87.23 500.13 438.91 297.48 59.05 96.32 146.41 1947 108.26 48.04 40.07 328.87 344.01 255 327.4 593.65 704.34 710.03 318.69 230.98 334.11 1948 145.93 140.73 117.01 242.9 301.99 285.91 651.93 719.43 767.96 796.35 373.94 226.76 397.57 1949 222.14 212.54 128.85 272.87 210.63 103.72 381.83 630.28 561.24 437.32 161.64 138.29 288.45 1950 108.21 72.47 63.74 72.49 196.04 78.51 158.04 516.1 521.69 578.85 328.93 215.24 242.53 1951 213.04 189.24 108.29 211.2 247.25 141.93 197.65 578.03 657.05 763.65 561.81 292.76 346.83 1952 278.63 211.29 123.85 116.21 155.81 134.86 180.68 569.54 598.62 582.14 264.31 216.21 286.01 1953 190.35 120.32 134.67 260.4 253 104.31 307.46 535.19 719.82 754.05 301.24 194.72 322.96 1954 172.74 166.44 210.8 132.75 127.61 105.29 328.36 739.99 741.62 734.23 267.73 157.88 323.79 1955 169.24 160.49 195.31 220.3 296.2 383.6 732.59 741.45 760.5 815.62 286.88 191.46 412.8 1956 195.39 155.79 147.74 145.07 173.95 163 267.62 283.9 182.36 167.18 164.24 199.51 187.15 1957 203.55 207.06 206.7 188.13 181.81 205.75 163.45 159.95 150.41 150.19 137.96 153.48 175.7 1958 144.62 166.14 169.33 148.66 127.4 150.83 190.24 208.64 203.75 197.9 200.46 183.28 174.27 1959 187.9 198.78 210.92 214.94 209.85 215.11 216.35 218.49 218.75 219.41 221.71 220.6 212.73 1960 204.34 191.19 218.53 183.75 180.84 180.6 216.35 221.2 202.55 208.41 212.49 215.14 202.95 1961 212.63 210.55 220.08 220.62 226.08 239.77 317.99 204.63 301.06 330.6 253.55 297.88 252.95 1962 330.94 344.46 290.96 220.75 105.73 188.14 148.37 155.5 120.63 95.48 161.79 228.46 199.27 1963 219.47 263.81 200.5 95.82 95.61 118.15 106.52 97.68 129.79 120.15 115.15 229 149.3 1964 301.63 254.04 96.23 93.06 176.82 132.83 129.59 140.04 198.78 171.54 121.98 320.95 178.12 1965 357.07 359.83 316.94 245.6 333.04 371.8 370.22 401.74 414.47 409.96 411.45 344.22 361.36 1966 337.77 403.21 346.84 376.9 414.98 286.74 186.39 178.64 162.75 150.95 270.82 327.84 286.99 1967 322.38 363.87 279.26 225.21 337.79 365.1 295.66 344.19 360.76 361.45 373.22 305.53 327.87 1968 346.29 390.77 343.39 193.67 191.07 188.5 338.1 290.34 328.68 374.32 359.23 309.84 304.52 1969 367.12 400.69 350.4 273.64 330.85 244.75 302.35 378.72 314.6 303.17 328.85 308.75 325.32 1970 333.68 409.59 239.05 295.82 296.69 405.88 404.48 403.38 409.28 385.11 381.43 314.59 356.58 1971 396.71 424.86 332.95 369.63 410.32 359.81 317.33 321.63 269.86 238.96 234.46 260.06 328.05 1972 381.27 388.04 296.69 397.1 366.29 259.19 257.05 288.01 254.48 241.43 257.12 306.01 307.72 1973 314.87 388.65 378.26 216.15 178.03 175.75 192.01 218.5 195.2 97.37 103.17 263.44 226.78 1974 279.52 276.29 249.01 125.35 156.11 246.45 299.34 342 363.97 320.99 301.29 266.82 268.93 1975 334.69 343.44 280.8 182.74 352.32 741.62 991.92 545.6 409.09 413.88 398.99 338.62 444.48 1976 370.22 421.34 372.23 413.33 448.14 588.33 411.97 408.77 419.09 351.4 415.13 301.99 410.16 1977 374.79 420.41 250.65 168.39 175.29 205.39 280.43 236.68 179.44 144.14 194.82 287.01 243.12 1978 349.21 404.23 290.11 177.47 207.81 308.75 315.14 404.66 379.16 405.02 378.6 335.69 329.65 1979 368.67 431.53 307.38 488 533.18 393.8 396.8 367.21 258.16 223.34 213.6 294.13 356.32 1980 332.31 367.83 301.62 187.74 197.94 270.14 374.33 370.13 345.47 265.91 256.74 285.36 296.29 1981 348.66 344.66 316.51 229.18 315.51 376.62 401.28 395.71 400.21 331.58 309.03 345.28 342.85 1982 389.59 399.57 379.27 306.67 318.89 349.43 363.92 266.45 215.21 190.18 228.05 301.99 309.1 1983 346.11 359.52 248.09 194.54 185.61 202.75 262.07 301.07 232.2 168.35 235.69 319.89 254.66 1984 355.06 367.34 226.26 217.66 268.92 273.73 271.11 304.54 270.62 284.91 344.15 344.01 294.03 1985 366.57 390.57 213.11 300.54 397.63 323.57 288.56 258.42 206.34 182.32 205.49 331.13 288.69 1986 396.26 391.38 177.3 198.97 178.85 232.2 241.33 213.38 171.22 161.22 179.62 190.18 227.66 1987 241.79 311.79 195.2 140.17 165.43 191.52 197.49 195.3 170.66 148.53 149.89 283.35 199.26 1988 308.29 323.5 196.57 170.28 196.39 202.09 223.25 218.41 150.84 130.26 242.3 311.76 222.83 1989 328.02 343.75 300.43 181.42 202.24 255.99 257.14 253.12 232.67 289.11 318.76 313.22 272.99 1990 350.13 328.58 154.56 172.17 217.58 224.93 228.64 220.05 223.42 223.61 187.84 223.06 229.55 1991 226.81 222.29 224.71 176.23 223.61 221.72 171 215.57 200.96 209.91 138.07 223.98 204.57 1992 222.15 209.06 225.81 231.07 227.08 225.31 203.52 169.35 84.86 85.77 88.44 224.29 183.06 1993 227.1 199.53 140.31 169.37 202.8 198.24 152.18 132.54 96.84 85.41 114.12 199.68 159.84 1994 208.27 191.75 110.25 176.13 334.96 255.99 228.36 229.55 191.89 134.73 145.64 268.92 206.37 1995 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 243.65 243.35 208.06 202.68 226.86 233.24 272.62 330.79 314.84 297.55 235.85 235.11 253.72 Std Dev 112 132.85 100.27 98.22 113.91 132.53 156.42 163.39 188.03 199.94 111.8 92.37 80.81