,Monthly Mean Flow - St. Clair River - m3/sec ,,,,,,,,,,,
,"Coordinated 1900-Early 2016 (as of Aug-2016)",,,,,,,,,,,
,(Includes revised flows for 1987 - 2008),,,,,,,,,,,
,* Provisional values in gray,,,,,,,,,,,
Year,JAN,FEB,MAR,APR,MAY,JUN,JUL,AUG,SEP,OCT,NOV,DEC
1900,4190,3960,3960,5130,5240,5300,5440,5470,5550,5580,5640,5440
1901,4700,3570,4360,3600,5490,5720,5780,5780,5660,5610,5550,5300
1902,4130,4300,5180,5270,5320,5440,5410,5490,5380,5270,5300,5150
1903,3990,3880,4900,5240,5240,5320,5440,5440,5490,5610,5440,5150
1904,4330,4190,4360,5300,5520,5720,5780,5800,5780,5800,5690,5350
1905,3570,3940,4560,5550,5660,5780,5830,5860,5860,5830,5720,5610
1906,5470,4250,4810,5660,5780,5780,5830,5800,5720,5610,5550,5150
1907,4420,4110,4900,5580,5640,5720,5830,5800,5830,5720,5610,5490
1908,3960,3740,4730,5440,5610,5780,5890,5830,5690,5550,5440,5380
1909,4810,3450,4360,5210,5380,5520,5580,5520,5490,5380,5210,5040
1910,3910,3960,5040,5150,5270,5350,5300,5270,5240,5240,5150,4790
1911,3820,3680,4810,4900,5100,5180,5210,5210,5100,5100,5040,4960
1912,3850,3990,4420,4760,5010,5320,5320,5410,5440,5490,5490,5490
1913,5210,4130,4670,5210,5440,5640,5720,5660,5550,5610,5550,5410
1914,4360,4360,4560,5210,5270,5380,5410,5410,5440,5380,5380,4980
1915,3710,4220,4840,5130,5100,5150,5150,5150,5150,5150,5150,5010
1916,4640,4020,4110,5100,5320,5490,5660,5660,5640,5550,5610,5490
1917,4530,4530,5440,5490,5610,5720,5920,5970,5830,5750,5720,4760
1918,4080,4560,4980,4560,6060,6170,6090,6000,5920,5750,5780,5660
1919,5380,5240,5300,5380,5610,5580,5660,5610,5520,5440,5410,5410
1920,3480,3740,4730,5470,5580,5640,5720,5660,5690,5610,5440,5320
1921,5240,3850,5070,5130,5380,5380,5350,5320,5210,5240,5040,5100
1922,4080,3790,4640,5130,5320,5470,5470,5440,5350,5270,5180,5010
1923,3790,3850,4250,4840,4960,5210,5180,5180,5150,5100,4980,4790
1924,4250,3450,4360,4590,4790,5010,5040,5100,5100,4960,4790,4250
1925,3770,3680,4190,4590,4700,4670,4700,4640,4530,4530,4420,4450
1926,3110,3260,3600,4330,4560,4700,4700,4670,4590,4530,4470,4500
1927,3200,3480,4130,4700,4870,5040,5040,5040,4930,4980,4870,4810
1928,4020,3280,3880,5100,5300,5320,5380,5490,5550,5610,5690,5610
1929,4790,4640,5410,5720,6060,6170,6230,6230,6120,5890,5890,5040
1930,4530,4700,5440,5380,5490,5610,5720,5720,5610,5440,5270,5100
1931,4160,3140,3510,4960,4980,4930,4960,4810,4700,4700,4760,4640
1932,4450,4470,3790,4590,4530,4620,4700,4670,4560,4500,4420,4110
1933,4220,3280,4110,4280,4390,4590,4590,4590,4470,4420,4390,4130
1934,3060,3430,3740,4360,4420,4470,4500,4530,4500,4500,4390,4450
1935,3650,4220,4250,4530,4560,4640,4730,4730,4640,4620,4590,3990
1936,3820,3770,4250,4700,4810,4900,4870,4790,4840,4870,4760,4560
1937,4500,3450,4560,4450,4620,4670,4640,4640,4700,4670,4670,4360
1938,3600,4110,3740,4760,4930,5040,5150,5210,5180,5150,5100,4980
1939,4470,3960,4080,4840,5100,5210,5320,5380,5380,5320,5240,5100
1940,3570,4050,4300,4760,4840,4930,4980,4980,5070,4980,4930,4840
1941,3960,3680,4390,4760,5010,4980,4980,4900,4930,5040,5130,5100
1942,4160,3000,4590,5130,5240,5350,5380,5350,5320,5270,5210,5010
1943,3960,4190,4640,5270,5210,5550,5720,5890,5890,5800,5780,5610
1944,4220,4640,4760,5440,5490,5550,5610,5610,5610,5610,5490,5380
1945,4250,4590,5130,5180,5270,5490,5640,5610,5550,5490,5520,5300
1946,4670,4530,5520,5690,5660,5610,5640,5550,5490,5380,5320,5240
1947,4280,4190,5010,4930,5210,5380,5610,5610,5610,5610,5610,5440
1948,4900,4700,4980,5380,5490,5490,5520,5520,5380,5210,5100,5040
1949,4840,4590,4330,4930,5040,5040,5150,5130,5040,4870,4810,4620
1950,4330,3790,4020,4560,4810,4980,5150,5300,5270,5270,5270,5040
1951,4390,4420,5100,5300,5610,5690,5890,5970,5950,6060,6060,5950
1952,5750,5720,5750,6090,6230,6340,6340,6460,6400,6290,6090,6030
1953,5920,5690,5780,5830,6060,6120,6230,6260,6170,6060,5950,5780
1954,4790,4450,5580,5550,5780,5890,6060,6060,5970,6030,6060,5950
1955,5520,5240,5580,5690,5830,5830,5830,5720,5490,5380,5320,5180
1956,4080,4020,4700,5130,5100,5350,5380,5380,5320,5240,5210,5100
1957,4130,4420,4900,4870,4930,5040,5150,5100,5100,4980,4980,4900
1958,3990,3740,4640,4640,4980,4870,4870,4840,4790,4700,4670,4360
1959,3340,3620,4280,4390,4700,4840,4870,4900,4930,4900,4960,4900
1960,4640,4190,4670,4900,5380,5550,5780,5800,5780,5720,5610,5300
1961,4930,5100,5180,5150,5150,5210,5300,5300,5300,5350,5320,5150
1962,4330,4160,4900,5130,5300,5320,5320,5240,5270,5100,4930,4640
1963,4020,3740,4300,4590,4760,4840,4870,4900,4810,4760,4700,4420
1964,3770,3600,4130,4160,4390,4420,4500,4530,4560,4560,4500,4360
1965,3710,3770,4080,4390,4700,4810,4870,4930,4960,5100,5040,4930
1966,4840,4590,4810,5010,5150,5150,5210,5130,5100,5010,4870,4840
1967,4730,4420,4730,4980,5180,5270,5440,5440,5380,5210,5320,5100
1968,4620,4640,4980,5040,5180,5270,5440,5550,5580,5610,5580,5350
1969,4640,5130,5270,5380,5550,5720,5890,6000,5950,5860,5830,5520
1970,4250,4700,5410,5440,5640,5780,5830,5860,5860,5780,5780,5660
1971,5210,4980,5550,5800,5970,6060,6170,6170,6090,6000,5950,5750
1972,5610,5320,5440,5490,5890,6060,6060,6170,6290,6260,6120,5950
1973,5860,5490,5690,6060,6260,6370,6460,6510,6460,6370,6290,6060
1974,5660,5720,5830,5950,6200,6430,6570,6480,6400,6230,6170,5950
1975,5690,5550,5440,5830,6120,6230,6310,6230,6170,6000,5860,5800
1976,4730,4980,5490,6000,6230,6290,6310,6230,6060,5890,5690,5150
1977,4190,4670,5150,5320,5350,5410,5410,5440,5320,5320,5440,5150
1978,4810,4700,4900,5070,5270,5440,5610,5640,5660,5780,5660,5440
1979,4500,4730,5320,5550,5950,6000,6120,6200,6120,5970,5890,5800
1980,5690,5580,5490,5610,5780,5890,5950,5920,5920,5920,5830,5660
1981,4670,5210,5580,5610,5780,5780,5830,5800,5860,5660,5660,5550
1982,4620,4590,4960,5180,5490,5520,5580,5720,5720,5640,5610,5490
1983,5470,5470,5640,5610,5780,6060,6120,6000,6000,5950,5800,5380
1984,4390,5410,5210,3680,6000,6120,6170,6170,6120,6090,6060,6030
1985,5580,5410,5750,6000,6370,6430,6370,6370,6370,6370,6260,6120
1986,5520,5610,5830,6260,6370,6400,6540,6630,6600,6740,6650,6230
1987,6190,5730,5840,6210,6190,6240,6170,6130,5990,5910,5840,5710
1988,5410,5310,5600,5830,5860,5870,5780,5730,5610,5590,5490,5630
1989,5430,5150,5290,5510,5580,5540,5590,5580,5570,5440,5350,4780
1990,4870,4950,4950,5160,5270,5360,5530,5490,5420,5370,5400,5360
1991,4870,5050,5160,5420,5580,5690,5710,5680,5560,5450,5450,5600
1992,5250,5090,5400,5480,5580,5540,5460,5430,5310,5410,5280,5440
1993,5260,4960,5100,5260,5640,5830,5950,5960,5930,5880,5840,5800
1994,4630,5000,5580,5670,5780,5780,5800,5830,5870,5820,5780,5770
1995,5550,5060,5240,5500,5620,5690,5580,5600,5650,5480,5590,5340
1996,4420,5110,5190,4730,5720,5780,5930,5920,5870,5860,5970,5760
1997,5380,5570,5780,5950,6130,6080,6240,6320,6310,6230,6090,5930
1998,5640,5620,5640,5820,5860,5900,5900,5790,5770,5670,5550,5520
1999,4700,5260,5030,5210,5200,5280,5380,5470,5300,5220,5160,5010
2000,4560,4320,4940,4900,4870,4890,4890,4900,4960,4920,4840,4550
2001,4160,4500,4650,4660,4830,4970,5030,5030,5050,5040,5160,5040
2002,5020,4830,4930,4890,5130,5260,5370,5410,5320,5280,5180,4960
2003,4430,4070,4470,4710,4820,4890,4900,4910,4790,4840,4890,4860
2004,4290,4510,4780,4940,4970,5250,5390,5300,5240,5200,5230,5060
2005,4480,4720,4810,5020,5030,5090,5160,5150,5060,5060,4860,4770
2006,4790,4810,4820,4940,4970,5040,4970,4980,4870,4850,4820,4790
2007,4730,4160,4530,4860,4830,4920,4990,4920,4840,4830,4830,4600
2008,4430,4210,4260,4530,4870,4970,5080,5210,5130,5170,5060,4790
2009,4340,4570,4780,5010,5170,5300,5370,5370,5370,5300,5390,5280
2010,4580,4260,4880,5140,5040,5030,5150,5190,5180,5120,4960,4900
2011,4010,3800,4060,4630,4730,4810,5000,5060,4920,4920,4860,4590
2012,4590,4640,4640,4900,4880,4900,4900,4880,4760,4710,4570,4500
2013,4280,4050,4420,4460,4830,4880,4760,4890,4910,4870,4970,4910
2014,3940,4370,4570,4910,5120,5260,5400,5420,5490,5640,5670,5740
2015,4500,4450,5210,5630,5700,5640,5530,5620,5670,5570,5600,5630
2016,5660,5440,5600,NA,NA,NA,NA,NA,NA,NA,NA,NA