Country= U.S.A. Station= GUERNSEY RESERVOIR, WY River= NORTH PLATTE RIVER Area= 42051.34 Lat= 42.27 Lon= -104.75 Source= USGS PointID= 6656000 Area Units= km2 Discharge Units= m3/sec Starting Year= 1929 Ending Year= 1985 Total Years= 57 Total Usable Years= 56 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1929 265.17 327.17 738.89 301.39 421.48 350.05 172.08 91.06 68.52 371.4 496.11 274.86 323.18 1930 217.56 319.14 293.55 204.61 112.31 66.71 35.89 42.26 36.64 31.85 48.52 64.14 122.77 1931 114.68 118.45 219.74 458.89 337.22 135.77 106.32 182.43 80.5 46.88 42.82 172.14 167.99 1932 310.27 520.34 475.27 295.73 392.38 162.48 147.42 57.76 35.35 127.75 234.05 295.35 254.51 1933 394.54 525.18 450.2 411.45 337.18 132.66 117.01 112.84 59.12 43.56 49.1 101.58 227.87 1934 117.24 59.37 777.63 367.65 112.89 80.17 74 97.76 106.08 133.8 202.93 371.55 208.42 1935 684.27 384.34 753.96 686.35 397.74 163.01 247.88 159.22 221.49 73.58 266.01 201.3 353.26 1936 744.63 660.41 825.71 580.4 164.94 99 87.13 83.91 64.7 155.8 86.08 249.06 316.81 1937 860.11 477.32 262.48 256 211.73 106.05 87.17 148.54 181.49 528.17 234.49 234.27 298.99 1938 280.42 305.57 403.14 232.02 251.58 318.24 376.04 222.01 84.27 59.88 131.91 146.48 234.3 1939 264.11 752.68 458.99 239.36 132.61 136.28 143.98 108.68 51.1 45.36 47.25 53.37 202.81 1940 55.93 224.65 207.09 460.03 245.58 429.19 214.07 584.74 250.21 87.59 110.33 142.9 251.03 1941 224.45 154.8 263.04 269.47 94.51 93.18 274.06 71.93 68.25 40.94 52.42 115.56 143.55 1942 128.9 191.4 332.61 139.38 355.93 287.78 145.63 327.69 165.74 240.32 222.52 466.43 250.36 1943 442.11 483.45 553.1 409.89 303.66 171.64 184.98 85.52 55.82 49.18 81.14 80.12 241.72 1944 211.16 433.3 666.18 416.45 271.99 114.69 79.54 53.04 63.2 188.22 103.31 270.99 239.34 1945 370.57 472.61 466.43 237.49 364.64 209.09 121.49 114.65 310.84 129.74 187 304.04 274.05 1946 698.45 502.83 431.68 236.34 380.72 143.77 150.43 88.22 57.39 63.51 72.92 82.01 242.36 1947 482.67 176.98 452.9 329.22 157.98 138.36 97.98 122.92 94.7 147.23 263 154.52 218.21 1948 137.41 595.96 562.55 615.8 265.01 165.08 123.57 217.22 89.03 95.32 190.43 648.28 308.81 1949 519.64 444.54 347.55 431.97 391.3 212.62 356.61 270.22 199.94 124.87 306.16 399.69 333.76 1950 355.85 674.01 361.05 193.93 367.29 276.19 182.68 132.95 199.42 103.27 119.41 454.46 285.04 1951 223.45 475.36 459.12 606.03 233.6 289.37 107.08 83.46 67.66 42.64 75.91 263.46 243.93 1952 468.85 393.36 559.39 329.74 348.36 94.82 62.22 111.82 70.51 49.61 86.67 144.72 226.67 1953 344.5 511.47 551.34 294.27 321.03 171.53 110.91 53.65 41.4 40.13 45.47 93.54 214.94 1954 264.7 171.33 447.25 303.97 284.22 118.77 178.6 82.53 61.97 131.71 125.01 291.82 205.16 1955 237.76 569.43 1114.96 329.19 170.73 111.64 89.86 89.27 52.08 50.15 55.66 64.41 244.6 1956 56.85 475.35 420.24 523.25 224.91 154.64 145.77 75.49 90.2 135.22 197.45 244.28 228.64 1957 430.28 988.36 370.96 571.89 144.4 195.58 93.82 59.68 147.96 149.79 269.88 440.75 321.95 1958 331.24 420.94 562.53 709.77 588.86 146.61 177.38 194.23 64.57 57.05 68.42 124.59 287.18 1959 257.28 193.96 275.64 547.51 223.38 151.08 71.02 65.23 88.27 257.34 201.99 336.39 222.42 1960 314.7 467.71 502.46 712.56 263.47 157.16 108.7 90.63 96.18 65.29 76.23 77.78 244.41 1961 157.99 548.45 488.33 415.08 414.3 235.59 134.26 132.92 89.84 140.76 201.3 532.5 290.94 1962 394.32 508.89 672.94 369.3 173.19 153.59 109.68 97.42 67.52 71.03 259.46 322.14 266.62 1963 337.99 207.65 1061.52 158.87 163.65 120.48 66.25 50.11 44.23 41.62 62.8 108.86 202 1964 354.34 267.18 656.99 348.32 126.05 74.15 66.52 49.5 71.44 167.47 123.46 241.88 212.28 1965 395.92 376.96 552.69 456.82 203.95 97.69 87.93 63.86 52.7 96.4 57.66 57.91 208.37 1966 84.6 457.35 266.2 285.41 378.82 85.1 51.12 93.46 154.57 205.77 218.45 318.5 216.61 1967 368.09 276.06 737.06 220.39 404.63 176.96 95.28 112.99 76.65 128.88 116.36 383.02 258.03 1968 354.49 325.97 415.04 305.16 284.63 242.26 81.38 101.82 48.54 114.64 151.68 148.16 214.48 1969 200.42 312.62 300.02 297.68 175.94 133.5 108.62 186.3 90.11 77.39 113.56 257.27 187.79 1970 391.13 399.84 252.14 373.1 190.93 100.58 84.5 148.98 58.33 59 211.12 202.83 206.04 1971 272.86 668.56 351.31 270.1 492.65 292.21 118.4 140.58 128.79 219.96 182.55 294.28 286.02 1972 438.81 588.94 477.98 549.07 438.9 446.16 305.5 227.4 85.23 198.91 427.65 622.13 400.56 1973 246.19 509.46 634.03 630.63 493.26 323.45 151.15 142.22 76.14 105.28 221.28 571.91 342.08 1974 751.77 379.31 524.6 411.34 338.26 288.75 162.47 112.35 141.31 118.39 125.06 339.77 307.78 1975 477.92 638.45 896.67 439.01 477.84 274.72 145.57 90.84 171.47 184.15 173.33 141.44 342.62 1976 458.15 378.45 247.17 225.07 150.56 299.53 136 76.99 70.64 483.87 210.25 300.12 253.07 1977 127.72 330.04 453.57 637.28 176.1 121.91 87.06 98.81 90.27 220.73 515.97 380.96 270.04 1978 479.64 265.92 858.8 409.85 515.42 162.33 121.72 157.37 68.55 49.52 60.12 241.79 282.59 1979 603.24 426.17 828.03 410.09 410.38 382.99 193.61 145.64 315.05 330.84 454.55 273.78 397.86 1980 443.54 267.76 678.92 656.39 350.31 147.31 169.15 157.15 76.82 73.38 90.9 84.91 266.38 1981 70.08 302.8 216.73 300.41 412.82 381.19 105.67 52.54 75.52 72.4 69.19 180.85 186.68 1982 384.38 690.29 567.96 237.26 207.43 378.16 145.13 113.74 65.14 90.56 180.2 406.2 288.87 1983 164.61 466.19 571.16 755.12 389.21 210.69 138.47 67.16 54.73 142.27 187.28 431.72 298.22 1984 224.18 650.52 577.39 667.81 550.2 152.97 156.18 192.96 91.94 83.85 166.73 236.34 312.59 1985 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 339.15 423.49 515.27 402.35 299.88 194.03 137.37 126.69 99.82 131.15 166.63 257.93 257.81 Std Dev 181.02 176.07 208.12 160.04 123.23 96.62 68.26 84.74 63.15 102.19 111.09 146.95 56.54