Results
Country: | U.S.A.
| Station: | GRAND CANYON, ARIZ. | River: | COLORADO R. | Area: | 38873598.40 | Lat: | 36.1 | Lon: | -112.08 | Source: | USGS | PointID: | 9402500 | Area Units: | km2 | Discharge Units: | m3/sec | Starting Year: | 1922 | Ending Year: | 1995 | Total Years: | 74 | Total Usable Years: | 72 | |
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Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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1922 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 147.25 | 201.6 | 201.66 | -9999 |
1923 | 184.55 | 188.35 | 229.87 | 621.6 | 1643.12 | 2209.48 | 1071.39 | 663.17 | 623.74 | 346.65 | 364.69 | 273.35 | 701.66 |
1924 | 170.1 | 260.51 | 245.04 | 791.7 | 1379.04 | 1500.71 | 483.21 | 154.13 | 131.14 | 174.11 | 193.73 | 138.3 | 468.48 |
1925 | 124.29 | 217.3 | 304.57 | 623.26 | 968.17 | 1140.33 | 684.91 | 369.56 | 568.98 | 481.94 | 295.44 | 212.02 | 499.23 |
1926 | 171.09 | 184.79 | 301.42 | 785.51 | 1555.97 | 1655.79 | 657.87 | 267.16 | 184.32 | 215.74 | 176.92 | 191.44 | 529 |
1927 | 166.41 | 236.04 | 312.14 | 611.18 | 1783.06 | 1742.06 | 1163.92 | 457.28 | 1030.93 | 444.39 | 370.58 | 224 | 711.83 |
1928 | 229.46 | 246.76 | 359.21 | 469.59 | 1966.48 | 1792.28 | 715.42 | 307.25 | 178.34 | 283.12 | 280.5 | 168.48 | 583.07 |
1929 | 161.02 | 184.17 | 437.74 | 842.15 | 1796.67 | 2248.65 | 974.29 | 918.66 | 806.66 | 435.81 | 277.66 | 211.77 | 774.6 |
1930 | 146.28 | 245.07 | 282.04 | 794.85 | 920.49 | 1463.89 | 531.99 | 733.32 | 252.41 | 260.6 | 212.17 | 144.04 | 498.93 |
1931 | 128.96 | 196.49 | 208.09 | 273.73 | 536.56 | 671.4 | 232.06 | 149.49 | 142.32 | 246.29 | 185.65 | 125.86 | 258.08 |
1932 | 141.23 | 359.87 | 390.55 | 820.34 | 1827.91 | 1722.52 | 951.73 | 442.56 | 257.29 | 163.26 | 188.35 | 137.68 | 616.94 |
1933 | 130.58 | 141.08 | 243.75 | 247.75 | 640.26 | 1890.63 | 543.73 | 178.02 | 199.21 | 199.08 | 147.25 | 156.38 | 393.14 |
1934 | 151.65 | 161.57 | 160.69 | 215.3 | 507.79 | 259.64 | 67.4 | 76.44 | 79.21 | 79.19 | 93.18 | 112.03 | 163.67 |
1935 | 132.68 | 156.12 | 174.18 | 348.07 | 626.9 | 1899.69 | 697.05 | 267.17 | 216.11 | 177.56 | 159.59 | 133.49 | 415.72 |
1936 | 128.32 | 163.31 | 232.03 | 624.58 | 1650.24 | 1288.52 | 481.31 | 425.55 | 297.05 | 166.96 | 218.2 | 155.74 | 485.98 |
1937 | 100.21 | 270.78 | 378.3 | 744.93 | 1598.45 | 1142.87 | 629.55 | 194.73 | 215.35 | 223.88 | 188.91 | 187.64 | 489.63 |
1938 | 155.73 | 182.62 | 415.04 | 732.44 | 1514.23 | 2226.85 | 807.49 | 250.14 | 446.17 | 273 | 237.45 | 199.01 | 620.01 |
1939 | 166.13 | 161.96 | 376.92 | 576.25 | 1108.93 | 795.61 | 215.53 | 112.44 | 283.11 | 162.94 | 157.89 | 142.51 | 355.02 |
1940 | 129.93 | 160 | 215.36 | 329.59 | 915.19 | 722.74 | 199.35 | 117.42 | 227.94 | 348.67 | 204.72 | 187.91 | 313.24 |
1941 | 199.72 | 262.39 | 385.86 | 575.5 | 2291.58 | 1950.95 | 807.22 | 396.38 | 313.4 | 876.73 | 453.47 | 273.81 | 732.25 |
1942 | 197.79 | 221.85 | 300.82 | 1315.04 | 1456.68 | 2018.34 | 619.32 | 223.81 | 139.74 | 164.04 | 183.6 | 171.82 | 584.4 |
1943 | 159.96 | 178.93 | 266.86 | 674.45 | 995.02 | 1273.42 | 671.94 | 383.83 | 235.16 | 188.1 | 226.79 | 193.29 | 453.98 |
1944 | 137.07 | 178.58 | 253.67 | 522.99 | 1476.41 | 1972.09 | 853.71 | 209.81 | 119.45 | 166.47 | 190.89 | 158.74 | 519.99 |
1945 | 164.02 | 194.06 | 217.15 | 382.8 | 1290.8 | 1310.42 | 797.44 | 493.11 | 187.25 | 241.55 | 221.47 | 165.25 | 472.11 |
1946 | 176.76 | 169.58 | 236.82 | 483.41 | 817.36 | 949.56 | 361.24 | 261.22 | 177.22 | 192.88 | 234.29 | 215.51 | 356.32 |
1947 | 139.59 | 189.24 | 300.89 | 373.73 | 1422.15 | 1538.75 | 899.2 | 612.01 | 304.71 | 411.77 | 289.5 | 225.88 | 558.95 |
1948 | 196.83 | 225.61 | 307.97 | 824.4 | 1562.28 | 1597.83 | 464.77 | 270.31 | 115.34 | 154.83 | 206.74 | 167.94 | 507.9 |
1949 | 167.23 | 190.84 | 366.48 | 636.09 | 1362.6 | 2047.6 | 979.86 | 291.06 | 161.94 | 239.79 | 232.08 | 175.46 | 570.92 |
1950 | 164.96 | 211.15 | 308.41 | 567.1 | 893.81 | 1391.97 | 645.26 | 204.38 | 163.27 | 165.4 | 169.01 | 200.03 | 423.73 |
1951 | 150.31 | 186.75 | 197.5 | 254.8 | 714.59 | 1332.5 | 643.25 | 383.45 | 214.99 | 195.67 | 221.57 | 162.72 | 388.17 |
1952 | 272.92 | 195.1 | 200.21 | 1051.41 | 2331.4 | 2475.94 | 732.41 | 383.56 | 283.45 | 180.93 | 188.67 | 184.15 | 706.68 |
1953 | 187.65 | 192.45 | 219.93 | 253.78 | 455.26 | 1395.37 | 451.34 | 323.81 | 138.2 | 149.71 | 203.86 | 165.55 | 344.74 |
1954 | 153.31 | 179.86 | 195.03 | 269.28 | 557.75 | 379.5 | 307.56 | 160.81 | 197.57 | 242.33 | 171.11 | 136.23 | 245.86 |
1955 | 120.2 | 136.99 | 269.8 | 295.64 | 697.88 | 759.27 | 284.66 | 307.47 | 125.91 | 108.9 | 141.61 | 162.78 | 284.26 |
1956 | 183.5 | 152.76 | 235.49 | 417.77 | 978.85 | 1229.52 | 275.29 | 176.41 | 87.95 | 93.14 | 154.68 | 126.31 | 342.64 |
1957 | 157.8 | 188.9 | 249.22 | 386.23 | 1151.86 | 2636.97 | 1857.23 | 769.86 | 420.89 | 360.85 | 424.4 | 247.25 | 737.62 |
1958 | 191.01 | 273.19 | 344.83 | 751.72 | 1796.21 | 1790.96 | 314.7 | 155.06 | 180.45 | 159.35 | 183.14 | 178.48 | 526.59 |
1959 | 153.82 | 166.06 | 167.96 | 201.33 | 465.54 | 858.67 | 366.31 | 224.52 | 128.85 | 243.38 | 270.92 | 181.51 | 285.74 |
1960 | 160.11 | 173.97 | 377.68 | 785.23 | 727.75 | 1052.64 | 312.31 | 107.1 | 103.99 | 175.99 | 180.74 | 138.2 | 357.98 |
1961 | 134.12 | 179.9 | 174.4 | 279.47 | 528.41 | 805.24 | 191.98 | 172.38 | 355.93 | 355.42 | 271.24 | 188.44 | 303.08 |
1962 | 169.74 | 424.27 | 281.01 | 1174.12 | 1711.35 | 1356.38 | 838.73 | 235.65 | 151.47 | 256.58 | 210.78 | 158.46 | 580.71 |
1963 | 83.7 | 190.64 | 93.51 | 34.04 | 36.25 | 70.33 | 49.68 | 51.58 | 57.9 | 35.6 | 36.14 | 35.69 | 64.59 |
1964 | 36.21 | 120.66 | 176.14 | 378.69 | 163.97 | 36.5 | 38.73 | 131.97 | 90.7 | 137.47 | 176.42 | 190.05 | 139.79 |
1965 | 279.78 | 275 | 261.53 | 595.49 | 1050.83 | 1086.05 | 333.63 | 404.8 | 364.93 | 310.84 | 291.39 | 270.93 | 460.43 |
1966 | 243.44 | 267.07 | 330.72 | 411.45 | 465.68 | 376.69 | 321.39 | 319.48 | 296.63 | 260.92 | 280.5 | 285.39 | 321.61 |
1967 | 298.66 | 287.32 | 324.17 | 381.28 | 396.67 | 338.35 | 319.04 | 362 | 339.25 | 211.4 | 235.62 | 274.99 | 314.06 |
1968 | 303.17 | 262.62 | 414.57 | 512.92 | 449.42 | 440.29 | 398.22 | 357.04 | 321.05 | 297.92 | 321.26 | 306.05 | 365.38 |
1969 | 289.04 | 259.48 | 334.71 | 441.18 | 367.73 | 413.99 | 457.73 | 461.48 | 400.78 | 304.87 | 357.23 | 383.04 | 372.61 |
1970 | 353.57 | 251.73 | 234.78 | 461 | 435.7 | 390.65 | 375.08 | 367.38 | 359.78 | 249.41 | 229.69 | 322.28 | 335.92 |
1971 | 250.44 | 219.2 | 296.85 | 475.93 | 429.78 | 426.42 | 429.5 | 429.29 | 381.03 | 311.07 | 374.2 | 457.79 | 373.46 |
1972 | 386.97 | 232.02 | 167.46 | 377.61 | 420.08 | 423.7 | 401.32 | 458.89 | 449.6 | 422.27 | 347.32 | 492.55 | 381.65 |
1973 | 566.88 | 427.87 | 554.78 | 911.71 | 389.5 | 366.95 | 308.92 | 269.77 | 213.89 | 237.53 | 211.75 | 163.16 | 385.23 |
1974 | 403.67 | 166.44 | 199.74 | 241.08 | 375.72 | 443.7 | 568.72 | 565.79 | 394.29 | 280.46 | 352.34 | 268.12 | 355.01 |
1975 | 370.01 | 288.33 | 252.46 | 240.01 | 420.91 | 473.55 | 573.83 | 473.81 | 472.03 | 298.71 | 210.04 | 241.18 | 359.57 |
1976 | 330.82 | 377.8 | 327.91 | 330.2 | 496.83 | 361.56 | 371.47 | 332.72 | 410.22 | 377.05 | 429.64 | 381.66 | 377.32 |
1977 | 468.77 | 248.31 | 226.48 | 90.03 | 101.38 | 224.63 | 408.86 | 573.37 | 464.3 | 192.9 | 184.27 | 370.24 | 296.13 |
1978 | 428.33 | 301.62 | 319.6 | 229.07 | 267.34 | 364.53 | 321.06 | 502.86 | 482.8 | 325.65 | 343.36 | 485.5 | 364.31 |
1979 | 486.8 | 423.5 | 146.46 | 237.99 | 277.22 | 300.66 | 394.99 | 496.83 | 337.49 | 284.97 | 387.07 | 312.67 | 340.55 |
1980 | 276.21 | 411.6 | 309.03 | 459.09 | 408.76 | 696.43 | 719.34 | 609.64 | 485.26 | 352.25 | 440.07 | 344.54 | 459.35 |
1981 | 330.11 | 314.12 | 219.79 | 229.14 | 250.1 | 247.45 | 388.05 | 417.26 | 324.74 | 304.94 | 283.59 | 403.92 | 309.43 |
1982 | 423.9 | 375.02 | 270.26 | 313.39 | 296.08 | 307.82 | 380.32 | 444.42 | 319.43 | 346.35 | 448.07 | 455.23 | 365.02 |
1983 | 417.61 | 453.75 | 348.9 | 468.22 | 604.25 | 1582.54 | 1572.96 | 841.93 | 750.31 | 745.1 | 686.69 | 685.27 | 763.13 |
1984 | 677.6 | 694.25 | 693.49 | 725.67 | 1157.62 | 1199.79 | 1002.51 | 743.37 | 699.71 | 634.88 | 706.89 | 704.45 | 803.35 |
1985 | 732.68 | 770.93 | 619.69 | 595.32 | 957.94 | 1135.79 | 801.01 | 741.17 | 669.51 | 346.27 | 354.14 | 326.04 | 670.87 |
1986 | 479.48 | 615.49 | 730.94 | 848.85 | 1268.51 | 1001.19 | 607.81 | 727.84 | 788.82 | 535.1 | 594.75 | 713.31 | 742.67 |
1987 | 743.55 | 587.88 | 386.77 | 394.87 | 362.26 | 484.69 | 520.39 | 620.87 | 474.69 | 258.88 | 374.28 | 384.38 | 466.13 |
1988 | 396.01 | 407.39 | 336.73 | 296.71 | 268.37 | 259.1 | 336.63 | 369.98 | 342.12 | 248.4 | 297.57 | 299.31 | 321.53 |
1989 | 342.41 | 343.76 | 284 | 272.69 | 249.49 | 356.93 | 384.61 | 417.52 | 390.04 | 267.15 | 289.44 | 313.09 | 325.93 |
1990 | 326.85 | 307.55 | 310.91 | 282.51 | 297 | 370.65 | 367.27 | 461.59 | 367.73 | 222.44 | 247.88 | 278.46 | 320.07 |
1991 | 332.75 | 320.44 | 301.71 | 293.01 | 369.78 | 391.19 | 429 | 426.49 | 395.45 | 264.47 | 286.89 | 324.94 | 344.68 |
1992 | 369.86 | 331.61 | 302.62 | 304.8 | 287.29 | 319.91 | 404.75 | 417.72 | 355.92 | 261.03 | 287.37 | 324.55 | 330.62 |
1993 | 494.36 | 407.97 | 321.29 | 302.18 | 287.03 | 300.28 | 411.24 | 423.66 | 316.76 | -9999 | -9999 | -9999 | -9999 |
1994 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 243.78 | 245.69 | 322.34 | -9999 |
1995 | 359.4 | 370.37 | 337.83 | 295.97 | 289.25 | 485.73 | 518.38 | 540.49 | 530.38 | -9999 | -9999 | -9999 | -9999 |
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Avg | 260.28 | 270.85 | 299.45 | 491.13 | 868.39 | 1030.22 | 551.39 | 383.24 | 326.32 | 273.95 | 270.79 | 255.59 | 442.76 |
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Std Dev | 151.03 |
127.97 |
112.08 |
251.72 |
578.4 |
676 |
315.23 |
192.96 |
192.3 |
138.43 |
118.88 |
133.41 |
159.68 |
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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