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  • USGS Surface-Water Monthly Statistics for the Nation

    The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

    USGS 09379500 SAN JUAN RIVER NEAR BLUFF, UT


    San Juan County, Utah
    Hydrologic Unit Code 14080205
    Latitude  37°08'49", Longitude 109°51'51" NAD27
    Drainage area 23,000  square miles
    Gage datum 4,048.00 feet above NGVD29
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    00060, Discharge, cubic feet per second,
    YEAR Monthly mean in ft3/s   (Calculation Period: 1914-11-01 -> 2012-10-31)
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    1914 1,5781,018
    1915 1,0142,3282,2308,0379,26910,0906,4851,6631,050940.9667.3636.5
    1916 1,3071,4026,2097,5739,33810,5205,1617,1262,589
    1917 1,3715,9159,10813,9808,4752,8781,868
    1927 6,09211,02010,0706,5581,99111,8703,1792,092971.1
    1928 971.71,4732,1592,6106,8295,1811,436895.5712.61,384754.2
    1929 612.8875.12,4605,6529,5158,5793,8919,3357,3792,2011,067672.3
    1930 476.41,2621,2474,4384,4005,7182,5974,022434.7556.9553.6409.9
    1931 335.5905.2615.51,3273,3883,3341,163853.71,2902,5461,135740.5
    1932 571.63,6043,3547,91010,4109,2684,1573,4901,629802.5635.9432.7
    1933 470.5866.41,1911,0932,7597,3782,158647.32,2141,613619.4665.6
    1934 566.5576.3694.91,8292,456576.9264.4460.3615.2353.8344.7437.7
    1935 652.6897.91,2414,2646,07312,7804,8512,0692,2661,115692.1520.0
    1936 590.3871.72,2365,3056,9053,212664.22,5302,3091,0801,208781.6
    1937 402.82,5303,1399,01810,9605,5722,661624.7795.71,453613.3597.1
    1938 592.1849.53,0476,4157,89911,4803,772802.93,3771,746967.8769.8
    1939 699.8615.22,3133,2085,0982,694268.880.42,040630.3615.2476.0
    1940 638.0867.51,2072,1054,6962,121527.2693.01,9252,3721,1191,323
    1941 1,2652,2813,4366,59421,52015,3808,5542,8273,39810,6503,2101,699
    1942 1,3191,2192,05110,1207,7918,9612,445825.3638.9606.4652.0702.4
    1943 704.5884.61,5454,9315,3924,2651,7251,4811,047948.6983.1831.2
    1944 607.5850.71,2323,42510,41011,8404,604992.01,1141,224866.3695.2
    1945 664.71,1301,1683,3007,4196,3352,0771,558361.41,008777.0491.1
    1946 601.1647.0762.61,5912,0353,4271,0301,224742.1894.21,012741.8
    1947 500.1813.9835.51,1435,3504,6381,7834,7732,0903,3621,2961,064
    1948 851.71,3701,4566,0238,44210,1302,3901,393596.81,219923.8670.3
    1949 1,0241,3312,4795,6878,18412,5705,5551,466694.3912.1750.4562.1
    1950 670.5878.0915.02,2822,7543,2111,112237.1701.7487.6415.7527.9
    1951 483.4527.5547.6573.22,3013,169489.6803.1753.9572.6652.1580.8
    1952 1,431701.91,4137,60410,04012,9303,8731,354947.9610.8683.7705.8
    1953 686.5640.3904.31,8022,5414,4941,2481,154200.3876.0923.1560.5
    1954 525.5646.1780.41,8953,5432,0151,9471,0711,5001,552659.4563.4
    1955 499.6609.21,0241,0503,0303,4981,0532,317463.2399.6519.5576.3
    1956 658.3591.31,2121,7923,9183,418510.0578.564.5205.4495.7408.5
    1957 610.91,1571,1502,8755,31713,2209,2125,9132,3922,4432,3751,427
    1958 860.32,1352,5916,94312,0808,5251,201689.61,031766.0724.8585.9
    1959 494.7559.8525.7649.01,7982,613299.51,042182.41,4941,378754.0
    1960 596.8754.24,2275,6494,6306,4251,491299.5285.4942.8665.0644.4
    1961 561.7735.01,0742,6364,6413,815702.71,4231,8381,5921,210709.7
    1962 581.31,6851,1885,2895,6304,9861,423381.3443.81,690763.6538.7
    1963 409.7704.1647.01,0821,549784.9236.0788.61,169660.6791.2786.3
    1964 713.3518.8463.4499.61,6662,0331,8462,142934.5594.1709.1979.3
    1965 1,9762,1581,3882,7734,6857,0444,8013,5412,9733,0983,8993,821
    1966 3,2202,3253,2404,2434,3372,132871.2711.0714.21,5311,1741,168
    1967 949.01,1561,291518.71,2631,498639.22,4511,570500.0633.2635.7
    1968 579.3932.2811.41,3962,4014,0441,3302,866691.9915.0820.7733.7
    1969 1,3472,3582,3313,6284,4033,9973,2921,6451,9763,3821,9851,775
    1970 1,2202,3351,886823.32,2772,3261,2031,0665,1732,3052,2942,428
    1971 2,6722,5941,6431,1581,4022,0701,0711,753865.21,619994.91,793
    1972 1,9391,9041,9431,0861,3191,985277.8497.7946.75,5141,6111,629
    1973 1,7743,2102,8854,3787,8987,7906,4783,6073,2732,1562,2562,288
    1974 2,1631,6611,6821,0961,7201,161638.4405.8420.01,2191,183900.5
    1975 956.9908.21,8172,6704,7916,6705,8772,3962,1711,7361,7211,879
    1976 1,5741,4161,279883.22,9053,029846.7778.41,102831.8798.01,333
    1977 1,360989.3683.3398.8339.3556.1940.21,318562.4633.5857.9789.8
    1978 939.41,0941,6451,8482,5263,4201,021250.4496.2665.81,3131,238
    1979 1,5152,3923,6729,63710,33010,3306,7182,312662.31,024897.82,044
    1980 2,4203,3623,5954,7826,0116,3482,0041,2321,7841,3711,7471,600
    1981 1,8901,373986.5654.0980.11,8251,789860.61,4311,8521,075986.2
    1982 1,0581,1441,4692,2033,5804,2872,2543,2362,6901,6471,5681,979
    1983 2,3402,4593,9054,9855,3515,9734,2542,3391,1751,8791,3871,645
    1984 2,1142,7742,7742,9015,5163,6712,1362,3261,8082,2452,1002,412
    1985 2,3863,0313,6806,4838,2118,7003,2611,4812,4341,9723,2003,384
    1986 3,3742,7162,5594,0324,2945,9386,1593,1903,6673,3124,4353,768
    1987 3,3293,6834,7236,8787,2969,0264,9451,7231,0451,1382,2031,215
    1988 1,1591,5361,4821,7691,8212,5521,0331,8161,5201,0311,1531,166
    1989 1,1191,3741,7271,7681,6301,289770.51,134476.8916.0904.7849.8
    1990 746.9828.6797.7626.31,5851,963917.1909.71,1511,6251,1711,007
    1991 1,0511,5521,1771,6813,3512,470805.1648.51,470715.01,4761,185
    1992 859.01,4751,2033,2906,2674,5821,6211,0181,219883.81,011993.7
    1993 2,0492,2725,7316,3586,8287,1231,7841,1921,4561,0521,1581,064
    1994 1,045843.71,079926.74,6726,0441,958528.4976.51,1431,1211,031
    1995 1,0051,1832,9653,2925,7438,7344,1501,5791,3491,1221,1791,063
    1996 737.8796.8737.5597.51,9702,869796.7475.4859.51,518980.0767.8
    1997 830.6813.02,5482,6715,6197,9862,3542,4932,7561,5631,2101,210
    1998 1,3441,4021,3801,7145,5334,1901,5671,158698.81,8171,7451,051
    1999 957.9942.6862.71,0863,0925,6132,7975,7214,7071,261910.6884.8
    2000 879.3842.3977.81,7632,3252,175405.2663.5779.31,202993.7838.9
    2001 811.6879.61,1181,3694,4484,694825.81,417622.8800.4802.1813.8
    2002 796.8699.1665.1527.6634.6478.8380.2441.01,878759.7770.7679.5
    2003 583.8589.6737.6551.11,3951,320512.6693.22,321804.9702.7523.8
    2004 490.4515.7946.01,7712,2251,579538.6387.41,3051,070952.4771.3
    2005 1,4031,7851,3203,2107,3766,0331,5951,086930.91,5641,032796.5
    2006 740.1637.3664.3950.32,1742,9821,1431,4911,1843,1931,151941.9
    2007 930.81,2511,4051,4084,9632,8691,1121,7811,4421,2891,1121,370
    2008 1,5103,1224,6743,8524,3836,4681,645826.1966.6777.9914.7898.2
    2009 876.3845.6911.01,0314,1243,077864.0588.4613.7605.0809.3841.7
    2010 1,006993.21,1681,4241,7671,799888.01,6891,1841,037807.1829.5
    2011 804.1808.5796.4766.01,1604,5761,553693.01,0511,004787.2744.6
    2012 707.2709.9887.61,2162,350897.2883.3787.3797.8636.6
    Mean of
    monthly
    Discharge
    1,090 1,380 1,800 3,180 4,980 5,320 2,330 1,690 1,590 1,490 1,190 1,070

    ** No Incomplete data have been used for statistical calculation