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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 06934500 Missouri River at Hermann, MO


    Montgomery County, Missouri
    Hydrologic Unit Code 10300200
    Latitude  38°42'35.3", Longitude  91°26'18.6" NAD83
    Drainage area 522,500  square miles
    Gage datum 481.50 feet above NAVD88
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    00060, Discharge, cubic feet per second,
    YEAR Monthly mean in ft3/s   (Calculation Period: 1957-10-01 -> 2010-08-31)

    Calculation period restricted by USGS staff due to special conditions at/near site
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    1957 46,83033,61034,430
    1958 24,15032,120103,80073,24073,99071,640179,800127,20076,31052,77043,62024,530
    1959 25,12058,86071,55072,32095,02077,38059,77055,20049,69096,82037,97032,180
    1960 52,95049,02067,740213,500139,00079,97075,72052,67052,69041,40044,58028,970
    1961 22,34029,710107,000124,500196,60078,95080,49055,280137,70080,410144,30045,110
    1962 46,980121,600132,300104,10060,130107,90075,65051,03055,49060,15043,45024,710
    1963 17,35025,62069,17045,80075,08052,66045,25040,76037,80036,68038,78017,060
    1964 18,13019,25022,81080,92063,250121,00059,69041,07052,24038,17043,77024,730
    1965 43,74037,94099,460137,30061,870111,400147,10056,540159,50084,05054,99044,980
    1966 44,25064,74056,71077,60071,10073,25052,94050,63043,75041,62042,27027,660
    1967 21,57027,48029,91083,48066,590228,800118,90057,52052,46073,05084,52065,110
    1968 33,74062,47051,33081,93079,48069,59059,45083,27049,89062,39076,42066,380
    1969 69,98094,530109,000175,800126,100140,100195,20078,51095,790140,70076,03047,840
    1970 31,05041,85055,050119,400137,400137,80053,89059,640109,00099,89078,98050,520
    1971 50,86084,590108,40064,92089,330106,30076,63060,60058,17060,12074,05086,050
    1972 47,78039,32060,61081,510116,40071,54063,35070,38085,20068,060134,00066,550
    1973 129,000135,300267,500333,400192,100113,40092,29072,91084,410221,900127,600127,400
    1974 114,700115,600129,10087,050143,800132,60055,88053,65064,25051,460104,40054,780
    1975 58,920103,100108,300124,00088,110112,50082,57080,75092,73079,59081,53068,900
    1976 40,19049,54080,480101,100103,80070,00059,47047,25043,76048,19045,64036,060
    1977 21,56034,15042,84050,66053,72083,47077,15058,670128,40093,350125,10047,200
    1978 32,83026,710169,800173,200145,40088,50090,99079,90089,05067,76077,62054,110
    1979 32,39067,340192,800158,500116,60094,39099,20070,26063,34050,90070,92054,960
    1980 41,55049,36073,320124,50058,97083,45048,86049,91050,70045,26047,03040,750
    1981 26,23030,03030,91051,39097,480117,900153,30089,73054,83052,73059,75049,080
    1982 37,450136,800111,20076,770124,400223,500135,000100,100103,40072,68080,840178,900
    1983 77,94090,670119,100233,600204,200156,000109,30063,47056,77061,360103,10084,000
    1984 50,60092,710169,500248,400205,500206,700164,10071,99067,41078,200111,30085,940
    1985 96,820124,400171,700122,800106,400152,70071,77081,99068,530156,000152,700116,300
    1986 61,03091,41088,880107,300155,50099,990132,40076,070107,100286,700149,700133,100
    1987 71,28080,110146,800177,800123,600105,90099,33077,30072,11053,73063,93098,760
    1988 67,45075,41084,420105,80064,74046,15044,01042,79045,28046,66047,28037,250
    1989 36,85039,12052,97057,54047,71057,02048,90056,41097,11044,86034,26021,740
    1990 31,01048,73095,37089,980183,600183,50089,71074,70045,45045,56029,40030,970
    1991 48,93048,92042,31080,810115,90092,64052,84039,54040,72040,81035,13044,960
    1992 39,35050,86062,680100,00062,21059,600119,100109,00080,98061,050118,200146,000
    1993 108,00096,640149,200197,800194,900176,000376,300306,600243,500169,000127,90091,390
    1994 62,38086,920107,000173,200174,000127,30085,75057,14056,26049,16082,22064,080
    1995 67,75066,51063,900109,400313,000282,300178,000118,90083,03079,19085,28058,130
    1996 44,37052,84058,71082,620194,500199,600132,300110,40092,02097,000135,500100,200
    1997 61,600126,600146,700193,800154,800155,800107,70090,26091,42093,95096,170103,000
    1998 89,85091,360148,400189,300111,000158,400130,900100,60091,140173,000174,800106,800
    1999 77,160124,000107,100172,200220,400172,800147,20083,94069,70066,65063,82057,860
    2000 49,21046,86054,73051,16054,60075,50070,33056,84045,94046,94047,80030,040
    2001 32,83084,590123,700118,700116,400206,20097,45061,24059,41057,83044,68043,600
    2002 34,88054,45044,96065,810184,500100,80047,81044,48041,61042,67040,36028,910
    2003 25,54029,00038,13047,17081,73065,03053,39037,92050,85038,50044,66048,240
    2004 51,04038,740103,70070,60094,400107,20087,79072,82062,07042,64070,61065,000
    2005 119,500102,70047,20065,80073,500128,00056,58057,68055,42049,25026,79028,190
    2006 30,10030,54034,46050,96072,36048,25040,97042,66044,79035,23024,82033,720
    2007 39,46051,90080,230106,700200,900130,300107,00080,28055,93071,04042,76046,160
    2008 53,66080,190144,800171,200138,800231,200168,20087,760141,50078,91068,46055,240
    2009 60,07061,86092,290126,000186,200158,00095,23081,77066,250122,200134,20075,770
    2010 101,40095,640171,800159,800202,900230,400194,400138,500
    Mean of
    monthly
    Discharge
    52,400 67,900 96,300 119,000 125,000 124,000 101,000 74,800 75,400 76,500 76,000 61,000

    ** No Incomplete data have been used for statistical calculation