River Flow Clark Fork at St Regis













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USGS Clark Fork at St Regis
Year  Avg Annual (AF)  Year  Avg Annual (AF)    Year  Avg Annual (AF) 
1911  No Data  1941              2,777,390 1971            7,021,331
1912              6,655,491 1942              4,516,954 1972            7,943,683
1913              7,578,961 1943              7,265,555 1973            2,926,311
1914              5,319,918 1944              3,097,324 1974            7,337,518
1915              4,093,403 1945              3,859,440 1975            7,436,781
1916              8,389,799 1946              4,790,032 1976            7,602,564
1917              8,174,456 1947              6,659,560 1977            2,603,383
1918              7,547,604 1948              7,774,708 1978            5,985,574
1919              3,668,233 1949              5,496,229 1979            4,623,258
1920              5,578,513 1950              7,056,968     1980            5,616,141
10 year avg (AF)              6,334,042  10 year avg (AF)               5,329,416 10 year avg (AF)            5,909,654
1921              6,084,776 1951              7,155,762 1981            5,527,140
1922              5,724,384 1952              5,384,624 1982            7,167,604
1923  Incomplete Data  1953              5,171,966 1983            4,687,313
1924  Incomplete Data  1954              6,064,972 1984            5,242,100
1925  Incomplete Data  1955              5,405,853 1985            4,218,348
1926  Incomplete Data  45 Year Avg (AF)              4,909,563 1986            5,140,628
1927  Incomplete Data  1956              7,137,866 1987            2,802,379
1928  Incomplete Data  1957              5,252,762 1988            2,994,966
1929              3,599,551 1958              5,460,420 1989            4,601,100
1930              3,978,612 1959              7,144,280     1990            4,786,143
10 year avg (AF)              4,846,831 1960              4,879,722 10 year avg (AF)            4,716,772
1931              2,419,619 10 year avg (AF)              5,905,823 1991            4,712,818
1932              4,464,179 1961              4,625,557 1992            2,918,415
1933              6,214,604 1962              5,735,058 1993            4,104,350
1934              5,997,931 1963              4,838,865 1994            3,149,533
1935              3,743,974 1964              6,258,752 1995            5,133,148
1936              4,130,504 1965              7,644,736 1996            7,419,561
1937              2,627,244 1966              4,088,397 1997            8,472,677
1938              5,004,927 1967              6,135,278 1998            4,861,397
1939              3,771,906 1968              5,408,077 1999            5,522,964
1940              3,033,309 1969              6,006,449     2000            3,722,095
10 year avg (AF)              4,140,820 1970              5,625,382 10 year avg (AF)            5,951,987
      10 year avg (AF)              5,636,655 45 year avg (AF)            5,882,038
      90 year avg (AF)            5,395,801