Country= U.S.A. Station= JOHN MARTIN RESERVOIR, CO. River= ARKANSAS RIVER Area= 48986.95 Lat= 38.08 Lon= -102.92 Source= USGS PointID= 7130500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1943 Ending Year= 1983 Total Years= 41 Total Usable Years= 39 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1943 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1944 89.35 242.91 338.17 284.39 291.5 85.57 15.33 6.12 15.32 38.34 132.43 201.25 145.06 1945 149.24 699.7 314.3 345.86 339 125.12 18.83 12.72 25.3 49.15 118.52 678.99 239.73 1946 545.03 246.43 318.64 397.85 313.13 81.81 17.73 13.84 25.55 40.37 84.06 133.64 184.84 1947 67.48 230.89 357.72 272.83 57.11 35.37 7.73 11.35 19.43 62.45 74.98 66.06 105.28 1948 238.58 121.71 179.43 630.81 502.4 280.87 33.89 7.45 21.98 61.2 66.51 81.99 185.57 1949 82.56 128.89 395.92 385.31 245.67 46.67 6.41 4.25 13.08 18.16 39.53 39.19 117.14 1950 241.74 515.62 393.06 522.35 385.07 155.09 18.56 8.58 32.78 74.72 680.06 1044.17 339.32 1951 585.92 625.5 401.01 347.2 309.05 60.08 13.36 9.08 42.13 72.13 121.23 466.73 254.45 1952 667.37 804.4 589.36 1207.34 1034.21 515.46 151.63 40.19 53.93 78.67 83.59 171.25 449.78 1953 1040.46 268.41 299.5 437.53 449.14 357.33 73.27 30.47 56.68 84.25 116.76 118.33 277.68 1954 200.64 416.6 552.9 600.6 267.61 73.47 27.6 27.24 41.48 70.32 109.59 157.07 212.09 1955 152.42 103.26 132.67 158.02 256.61 70.09 12.07 10.52 20.64 34.85 62.14 1092.2 175.46 1956 1091.03 656.44 545.06 501.59 596.48 296.93 62.53 41.47 67.56 83.99 109.67 79.62 344.36 1957 105.09 389.21 541.99 247.97 384.23 148.61 25.62 18.79 50.51 96.71 99.52 203.17 192.62 1958 278.03 1137.74 666.36 974.39 752.68 398.57 70.7 37.97 64.79 57.99 78.29 83.89 383.45 1959 240.5 386.47 270.21 190.02 95.12 20.01 13.11 6.9 27.21 41.19 41.14 44.07 114.66 1960 92.51 482.68 468.03 272.84 148.51 73.15 22.16 21.54 29.76 26.22 74.88 129.87 153.51 1961 79.45 261.17 225.79 191.04 128.88 50.04 17.68 19 16.15 18.08 34.32 99.44 95.09 1962 83.54 634.73 319.76 441.46 256.07 129.95 23.43 25.06 36.97 650.37 156.35 355.41 259.43 1963 165.1 998.9 283.14 923.13 577.12 146.27 45.03 14.38 36.73 54.45 169.85 130.76 295.4 1964 203.75 135.27 112.15 171.11 153.59 71.21 23.2 17.35 41.9 74.28 99.13 1309.58 201.04 1965 983.06 419.9 271.39 609.76 369.35 191.32 60.45 48.15 66.21 94.5 150.99 138.52 283.63 1966 214.12 180.54 238.29 308.8 140.21 15.74 14.88 14.08 24.58 22.43 125.64 391.03 140.86 1967 614.9 546.74 591.1 489.03 678.15 511.22 130.24 45.89 65.9 74.86 61.53 48.24 321.48 1968 66.95 287.84 184.86 100.13 109.18 49.94 9.37 13.49 27.99 41.37 54.86 85.91 85.99 1969 887.87 927.28 422.86 590.32 441.29 117.85 73.83 176.91 195.8 98.45 106.23 332.19 364.24 1970 1838.21 621.36 447.42 95.85 114.32 73.15 68.53 155.09 186.95 158.17 180.25 421.92 363.44 1971 411.49 184.16 438.31 385.08 251.19 310.27 211.83 251.67 279.62 145.22 170.44 235.42 272.89 1972 168.57 199.9 119.69 70.02 71.39 104.02 112.13 156.36 168.43 170.56 165.89 185.63 141.05 1973 726.61 561.79 457.78 174.81 117.49 93.1 115.03 148.22 143.3 149.89 584.83 560.4 319.44 1974 1010.73 440.03 770.04 1053.96 283.28 219.96 241.18 291.57 246.71 212.29 228.29 266.58 438.72 1975 166.08 236.26 236.82 201.32 262.5 221.33 174.68 198.97 186.89 163.28 217.12 266.68 210.99 1976 104.3 87.47 67.71 89.72 41.49 49.97 78.41 47.36 77.45 76.77 66.56 58.26 70.46 1977 46.62 42.65 33.31 59.42 29.77 34.14 50.98 43.58 36.29 31.73 35.3 56.43 41.69 1978 246.34 212.12 501 366.99 217.14 85.37 151.87 167.96 156.78 103.36 101.71 105.72 201.36 1979 167.33 280.73 257.66 97.36 114.91 108.1 156.49 168.92 126.98 106.65 101.43 149.03 152.97 1980 988.31 890.06 507.38 181.01 116.94 199 167.93 166.32 142.32 92.62 63.25 92.34 300.62 1981 116.66 103.08 188.27 103.93 95.83 55.74 153.09 82.01 73.79 65.84 366.71 952.91 196.49 1982 717.79 895.73 686.28 1299 461.84 242.23 187.75 230.88 251.12 171.67 253.05 582.34 498.31 1983 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 407.07 425.76 362.19 404.62 293.83 151.39 73.3 71.58 81.97 96.6 143.25 297.85 234.12 Std Dev 401.85 283.99 176.08 312.33 215.15 126.83 65.96 80.53 73.79 101.39 131.96 316.02 109.77