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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 15564900 KOYUKUK R AT HUGHES AK


    Yukon-Koyukuk Census Area County, Alaska
    Hydrologic Unit Code 19040608
    Latitude  66°02'51", Longitude 154°15'30" NAD27
    Drainage area 18,400  square miles
    Gage datum 250 feet above NGVD29
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    00060, Discharge, cubic feet per second,
    YEAR Monthly mean in ft3/s   (Calculation Period: 1960-06-01 -> 1982-09-30)
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    1960 21,36022,34025,75014,9702,903990.0850.0
    1961 700.0480.0320.0290.046,14041,29036,46049,68031,13015,0403,6001,800
    1962 1,3001,000790.0820.038,08097,03021,51023,29038,8508,0352,300953.5
    1963 530.0420.0400.0420.042,66059,35041,70074,77023,51014,4303,9001,091
    1964 810.0660.0530.0485.0751.694,25016,75016,76030,10010,5602,733920.0
    1965 620.0490.0430.0490.03,63187,25032,25048,08048,16029,6104,5002,000
    1966 1,250800.0600.0400.032,02056,83021,68015,81015,7008,0272,8001,400
    1967 800.0480.0280.0400.035,42068,72022,25028,20017,0407,5052,9271,516
    1968 985.5786.2750.0750.023,620101,70019,55012,3205,2372,203713.3382.3
    1969 300.0250.0250.0290.018,29012,5605,51518,0608,6433,384843.3395.5
    1970 306.5283.6265.5704.335,38026,81024,43028,49014,7604,1551,8371,042
    1971 712.9576.8536.5637.752,79059,99012,37013,5308,7575,7102,1501,061
    1972 696.8501.7395.2383.333,04051,76011,40020,72018,9104,3772,2231,358
    1973 909.7666.1546.8475.030,47052,52017,97041,61019,4107,5032,8471,797
    1974 1,098691.1458.1376.728,97027,89010,55020,61012,6006,4872,163662.9
    1975 443.5400.0400.0400.034,21046,27014,72011,16020,7808,3421,138514.2
    1976 413.2400.0400.0463.730,45045,24022,13017,80014,90011,6403,8901,839
    1977 1,034766.1700.0734.724,27073,48011,57013,08021,68010,8002,3371,471
    1978 971.6671.4508.71,07036,91044,44029,9608,6938,7683,7862,4171,623
    1979 1,097700.0636.1539.050,37032,85019,20017,10013,7007,4682,4171,510
    1980 1,3001,2001,1481,22048,36058,67031,50025,64017,88020,1108,2673,829
    1981 1,3681,054898.4820.044,72026,58038,66045,27012,1103,3371,7671,397
    1982 1,129807.1629.0546.736,05075,99030,40028,18044,810
    Mean of
    monthly
    Discharge
    853 640 540 578 33,000 54,900 22,400 26,300 20,100 8,880 2,670 1,340

    ** No Incomplete data have been used for statistical calculation