Country= U.S.A. Station= CROOK, CO. River= SOUTH PLATTE RIVER Area= 49823.47 Lat= 40.84 Lon= -102.81 Source= USGS PointID= 6760500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1949 Ending Year= 1979 Total Years= 31 Total Usable Years= 30 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1949 344.54 396.85 1321.95 893.21 711.76 289.2 179.67 199.95 239.19 199.19 246.18 229.49 437.6 1950 706.92 1143.6 891.89 1083.5 861.93 508.95 226.21 204.32 253.24 285.22 1042.07 1891.67 758.29 1951 1467.73 1762.13 1122.63 764.37 790.59 305.6 241.93 271.65 284.14 269.92 384.88 1013.84 723.28 1952 1776.39 1857.69 1664.95 1922.35 1976.98 1189.97 511.9 294.76 322.63 280.79 297.08 833.52 1077.42 1953 1794.93 938 713.68 842.81 1022.7 892.93 310.47 247.56 342.26 302.91 385.5 405.57 683.28 1954 772.87 1564.72 1370.82 1417.83 703.08 312.36 229.29 261.53 315.22 299.47 411.97 670.93 694.17 1955 644.71 427.89 386.65 390.18 611.74 345.12 254.58 255.57 278.77 224.1 284.99 1122.14 435.54 1956 2097.92 1516.62 1340.76 909.26 1202.56 721.71 351.22 333.5 389.26 351.68 413.33 354.24 831.84 1957 340.81 505.78 1411.47 566.15 877.19 475.57 264.17 275.88 344.15 515.73 531.51 654.31 563.56 1958 992.56 2048.94 1710.71 2020.8 1518.34 993.27 407.49 402.01 451.28 358.8 370.67 360.45 969.61 1959 774.61 1146.43 766.93 395.33 323.15 226.98 298.85 338.5 307.15 224.29 207.89 204.1 434.52 1960 313.96 1006.91 954.28 545.01 455.26 307.68 294.4 275.52 273.18 217.77 331.34 523.77 458.26 1961 366.29 1096.68 806.03 479.44 371.23 309.64 298.61 324.09 274.25 200.62 233.57 444.38 433.74 1962 298.29 1217.67 1070.11 799.67 559.21 368.43 290.13 326.83 343.01 812.36 472.99 903.86 621.88 1963 546.15 1588.28 691.67 1745.27 1211.51 498.47 343.82 324.73 459.21 401.19 641 594.29 753.8 1964 700.34 591.34 407.22 354.37 394.89 314.44 329.09 344.37 375.01 275.27 393.37 1035.21 459.58 1965 2033.53 1301.67 653.21 1194.13 852.25 453.54 343.73 409.04 438.54 394.79 571.34 640.24 773.83 1966 977.94 764.76 670.47 614.95 402.24 271.37 328.02 348.03 310.03 258.42 526.6 1314.64 565.62 1967 1022.34 1465 1183.65 1425.95 1470.57 1218.29 551.91 426.22 525.94 457.46 413.24 486.41 887.25 1968 579.86 1126.43 1019.87 408.8 377.07 321.47 356.61 368.21 371.52 329.3 385.21 649.46 524.48 1969 1568.85 2032.96 1408.18 1284.18 1149.85 654.78 402.56 519.48 595.13 472.71 479.69 998.22 963.88 1970 1989.59 1870.64 1251.79 413.99 403.93 333.76 373.05 424.12 524.24 432.15 637.7 1811.47 872.2 1971 1481.62 883.39 863.12 1083.69 826.58 780.13 594.11 636.13 690.75 455.08 448.92 616.12 779.97 1972 566.34 626.29 676.68 371.52 363.83 391.81 424.75 443.39 476.2 455.26 657.05 776.53 519.14 1973 1702.77 1847.89 1462.34 585.31 464.86 422.96 429.5 456.54 495.17 473.53 1360.25 1745.24 953.86 1974 2118.84 1483.51 1831.56 1876.95 826.22 691.31 615.94 678.15 709.62 569.72 623.07 726.19 1062.59 1975 550.26 1345.56 1442.52 939.37 857 671.4 517.74 552.09 577.1 542.96 630.05 723.36 779.12 1976 428.5 361.68 412.7 360.31 308.93 309.64 342 377.99 354.25 229.45 221.53 219.26 327.19 1977 277.55 226.62 186.12 168.8 215.12 194.41 233.57 217.67 193.63 127.26 189.37 332.6 213.56 1978 1288.15 1265.87 1573.6 1101.06 713.41 358.49 404.93 452.16 507.82 353.6 352.36 373.88 728.78 1979 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 1017.51 1180.39 1042.25 898.62 760.8 504.46 358.34 366.33 400.73 359.03 471.49 755.18 676.26 Std Dev 614.73 519.06 428.34 512.51 408.96 272.61 109.56 117.08 130.19 140.56 240.72 447.57 219.87