Data
2018
Month (m3/s)
01 10659.812
02 11661.812
03 17523.664
04 15895.219
05 17764.789
06 13418.211
07 10929.492
08 10954.270
09 11216.719
10 12299.867
11 13307.500
12 13010.695
2017
Month (m3/s)
01 10911.688
02 12064.516
03 13969.906
04 22309.656
05 24574.180
06 16192.938
07 13774.133
08 11811.617
09 11740.008
10 10907.648
11 12874.383
12 10573.469
2016
Month (m3/s)
01 10954.629
02 11784.527
03 14505.297
04 16662.055
05 16392.516
06 13535.539
07 10959.395
08 10243.723
09 10149.172
10 11100.391
11 11289.738
12 11358.816
2015
Month (m3/s)
01 9482.246
02 10961.598
03 9315.164
04 13412.930
05 11788.262
06 11462.762
07 11872.711
08 11444.289
09 10768.812
10 10362.723
11 10781.820
12 11959.695
2014
Month (m3/s)
01 9698.281
02 10348.555
03 10414.547
04 17182.734
05 19465.711
06 14184.180
07 11112.785
08 11219.828
09 10562.270
10 12852.734
11 11831.656
12 11878.785
2013
Month (m3/s)
01 9328.941
02 11355.543
03 13665.047
04 14366.195
05 16546.344
06 14889.609
07 11559.887
08 10338.688
09 10873.043
10 10043.664
11 10856.535
12 11252.664
2012
Month (m3/s)
01 9885.711
02 10931.789
03 14406.844
04 14711.500
05 12567.414
06 11922.641
07 9804.914
08 9787.480
09 9439.281
10 10983.824
11 10114.262
12 10933.047
2011
Month (m3/s)
01 11576.258
02 10708.359
03 12843.258
04 16197.328
05 21925.320
06 15707.336
07 12363.648
08 13115.117
09 11290.387
10 12001.262
11 10213.395
12 10713.570
2010
Month (m3/s)
01 11000.766
02 11957.059
03 13893.547
04 13611.602
05 10635.047
06 10082.918
07 9933.371
08 9680.215
09 10628.887
10 12766.055
11 11864.469
12 14243.828
2009
Month (m3/s)
01 9854.578
02 11210.379
03 12157.152
04 17928.211
05 13831.039
06 13577.414
07 13836.172
08 11132.688
09 9827.652
10 11106.773
11 10542.336
12 10989.348
2008
Month (m3/s)
01 10521.035
02 10956.867
03 11971.578
04 17565.953
05 16773.273
06 14323.656
07 12610.828
08 14233.953
09 10442.961
10 9595.566
11 11293.270
12 9835.852
2007
Month (m3/s)
01 10358.074
02 9899.098
03 12774.898
04 15292.992
05 12570.734
06 11725.609
07 10362.719
08 9633.609
09 9130.035
10 9926.379
11 9672.309
12 9771.949
2006
Month (m3/s)
01 11382.000
02 11833.617
03 12099.387
04 16392.051
05 14813.547
06 11672.770
07 10526.949
08 10536.598
09 10163.508
10 13110.305
11 14714.879
12 12589.715
2005
Month (m3/s)
01 9425.676
02 10406.383
03 11620.563
04 19428.734
05 15948.285
06 12246.320
07 9887.109
08 9327.793
09 9593.008
10 12818.957
11 11307.930
12 11241.383
2004
Month (m3/s)
01 10654.633
02 9921.371
03 11784.039
04 15160.484
05 14248.438
06 12062.387
07 11570.297
08 10842.238
09 9987.512
10 10921.871
11 10036.109
12 9709.465
2003
Month (m3/s)
01 8826.406
02 8650.55
03 9440.430
04 11624.145
05 12430.449
06 11028.14
07 9929.5
08 11217.59
09 9500.45
10 10271.258
11 12652.453
12 14666.672
2002
Month (m3/s)
01 9953.883
02 10584.180
03 10277.086
04 14730.699
05 14087.551
06 13685.035
07 11445.207
08 9735.910
09 9479.371
10 9109.727
11 10430.500
12 9197.512
2001
Month (m3/s)
01 9566.848
02 9219.188
03 10776.355
04 14023.887
05 12336.523
06 10516.563
07 9768.520
08 9198.016
09 9494.445
10 9872.465
11 10375.344
12 10265.465
2000
Month (m3/s)
01 10227.824
02 9439.242
03 12556.441
04 15473.602
05 15703.543
06 11386.656
07 11916.586
08 11151.094
09 9936.406
10 10021.957
11 10971.652
12 9038.588
1999
Month (m3/s)
01 8866.896
02 11214.524
03 12278.328
04 14569.699
05 11386.934
06 10305.598
07 10174.902
08 9598.633
09 10243.246
10 10595.785
11 11131.336
12 10823.914
1998
Month (m3/s)
01 12431.465
02 12902.391
03 17418.836
04 21518.969
05 14748.008
06 13520.805
07 12292.746
08 10258.555
09 10866.846
10 10289.008
11 10324.230
12 9307.164
1997
Month (m3/s)
01 10025.955
02 11294.948
03 12690.313
04 18965.133
05 21050.937
06 14310.247
07 11998.908
08 11288.011
09 10996.633
10 11341.191
11 11200.098
12 11326.416
1996
Month (m3/s)
01 10985.428
02 12141.987
03 11641.406
04 16276.543
05 18929.592
06 12979.808
07 14710.003
08 11540.468
09 12251.433
10 11771.041
11 12600.482
12 12643.427
1995
Month (m3/s)
01 14002.228
02 10929.715
03 15041.776
04 12244.830
05 13163.480
06 10941.791
07 10116.839
08 9904.197
09 9106.780
10 10438.639
11 13106.262
12 11757.921
1994
Month (m3/s)
01 9366.966
02 9648.214
03 11255.492
04 14556.984
05 15891.480
06 13581.049
07 14023.571
08 12379.417
09 11038.169
10 10285.431
11 10831.246
12 10528.687
1993
Month (m3/s)
01 10582.586
02 11740.230
03 12057.298
04 21069.167
05 15674.799
06 14167.983
07 12093.863
08 11084.838
09 10417.749
10 11311.800
11 11071.425
12 10892.435
1992
Month (m3/s)
01 9728.258
02 11520.504
03 10188.371
04 13398.504
05 13658.070
06 11281.109
07 11481.602
08 10469.297
09 10287.672
10 11023.633
11 12423.539
12 12110.457
1991
Month (m3/s)
01 10855.324
02 10658.512
03 15623.027
04 20141.445
05 14381.184
06 10934.402
07 10098.867
08 9795.098
09 9649.945
10 10373.590
11 10226.281
12 9919.027
1990
Month (m3/s)
01 10916.730
02 10709.125
03 11385.340
04 14925.250
05 14596.051
06 12828.980
07 10890.328
08 9884.137
09 9561.191
10 11442.926
11 12368.695
12 11860.484
1989
Month (m3/s)
01 9688.848
02 9392.121
03 9092.781
04 11559.641
05 13695.660
06 12657.789
07 10751.695
08 9795.098
09 9334.469
10 9524.020
11 11501.023
12 9164.859
1988
Month (m3/s)
01 10280.600
02 10613.800
03 10621.000
04 16250.000
05 12654.800
06 9672.330
07 8917.420
08 10142.600
09 9603.330
10 11416.100
11 14703.300
12 11377.400
1987
Month (m3/s)
01 11812.600
02 10796.800
03 13312.900
04 17250.000
05 12574.200
06 12373.300
07 11409.700
08 10181.300
09 9928.330
10 10501.300
11 10630.000
12 12071.000
1986
Month (m3/s)
01 11317.100
02 11917.900
03 13041.900
04 18576.699
05 16422.600
06 13903.300
07 12877.400
08 13077.400
09 13006.700
10 13690.300
11 13696.700
12 13512.900
1985
Month (m3/s)
01 11232.300
02 11578.600
03 13806.500
04 17180.000
05 16858.100
06 12486.700
07 12280.600
08 11793.500
09 10943.300
10 11390.300
11 11850.000
12 11273.200
1984
Month (m3/s)
01 10674.200
02 12155.200
03 12764.500
04 19376.699
05 16422.600
06 14800.000
07 13416.100
08 11690.300
09 11026.700
10 10138.100
11 11366.700
12 11512.900
1983
Month (m3/s)
01 11251.600
02 11285.700
03 12848.400
04 16700.000
05 21674.199
06 15823.300
07 10800.000
08 10068.700
09 9953.000
10 10272.900
11 11953.300
12 12825.800
1982
Month (m3/s)
01 10299.700
02 10180.400
03 10993.500
04 17893.301
05 15635.500
06 11783.300
07 10906.500
08 9970.650
09 10048.700
10 10122.300
11 11678.000
12 12887.100
1981
Month (m3/s)
01 10094.500
02 14157.500
03 14274.200
04 17846.699
05 14622.600
06 13506.700
07 10845.500
08 11606.100
09 12396.700
10 13232.300
11 13406.700
12 12180.600
1980
Month (m3/s)
01 11741.900
02 10872.400
03 11450.600
04 15716.700
05 13896.800
06 11293.300
07 11109.700
08 11277.400
09 11920.000
10 13332.300
11 12853.300
12 11719.400
1979
Month (m3/s)
01 9792.260
02 10360.700
03 15145.200
04 19320.000
05 18325.801
06 13490.000
07 10919.700
08 10400.000
09 11596.700
10 12274.200
11 13193.300
12 14041.900
1978
Month (m3/s)
01 11603.200
02 11932.100
03 12000.000
04 18280.000
05 17729.000
06 13040.000
07 10990.300
08 10315.500
09 9938.000
10 10451.000
11 9880.330
12 8950.000
1977
Month (m3/s)
01 9980.000
02 9251.070
03 14210.300
04 18650.000
05 13893.500
06 10963.300
07 9639.680
08 9698.060
09 10543.300
10 13658.100
11 12950.000
12 11819.400
1976
Month (m3/s)
01 11191.300
02 12075.900
03 15977.400
04 23723.301
05 20196.801
06 14323.300
07 14454.800
08 14132.300
09 12096.700
10 12896.800
11 12096.700
12 10481.900
1975
Month (m3/s)
01 11480.600
02 10882.100
03 12758.100
04 16630.000
05 17322.600
06 13663.300
07 10729.000
08 9854.840
09 10342.300
10 11454.800
11 12073.300
12 11874.200
1974
Month (m3/s)
01 12367.700
02 12135.700
03 14161.300
04 19903.301
05 25751.600
06 18216.699
07 14345.200
08 12774.200
09 11596.700
10 11703.200
11 12303.300
12 12758.100
1973
Month (m3/s)
01 11925.800
02 12842.900
03 17629.000
04 20020.000
05 18993.500
06 15640.000
07 14251.600
08 12983.900
09 12666.700
10 12764.500
11 12093.300
12 12841.900
1972
Month (m3/s)
01 9714.840
02 9778.970
03 10499.400
04 16006.700
05 22519.400
06 15160.000
07 14732.300
08 14048.400
09 12460.000
10 13235.500
11 13743.300
12 12267.700
1971
Month (m3/s)
01 10747.700
02 10510.700
03 11129.000
04 17236.699
05 19387.100
06 11820.000
07 10184.200
08 10571.600
09 10623.300
10 10281.900
11 9449.670
12 9716.770
1970
Month (m3/s)
01 10761.300
02 10372.100
03 10193.200
04 16363.300
05 16996.801
06 12736.700
07 11916.100
08 10845.200
09 10514.700
10 11309.700
11 11536.700
12 11242.300
1969
Month (m3/s)
01 10919.400
02 10853.600
03 10862.300
04 17910.000
05 19158.100
06 13450.000
07 11977.400
08 11725.800
09 10860.000
10 10103.200
11 12150.000
12 11358.100
1968
Month (m3/s)
01 11245.200
02 11175.900
03 12280.600
04 17313.301
05 11558.100
06 10129.300
07 10502.900
08 9962.260
09 10029.000
10 9888.710
11 10068.700
12 10497.400
1967
Month (m3/s)
01 10547.700
02 10945.000
03 9554.190
04 15263.300
05 14800.000
06 12303.300
07 11059.000
08 9892.260
09 9621.670
10 12448.400
11 14226.700
12 13145.200
1966
Month (m3/s)
01 11027.100
02 10391.400
03 12596.800
04 14743.300
05 12735.500
06 10726.700
07 9078.390
08 9420.970
09 8972.000
10 9324.840
11 10373.000
12 12374.200
1965
Month (m3/s)
01 8765.160
02 8522.860
03 8102.580
04 10039.700
05 10807.700
06 8576.330
07 7938.390
08 8560.970
09 9585.330
10 12180.600
11 11000.000
12 10598.400
1964
Month (m3/s)
01 9729.350
02 8978.280
03 9441.940
04 12601.000
05 10958.100
06 9523.670
07 8672.580
08 8129.350
09 7822.000
10 7938.390
11 8242.670
12 8665.160
1963
Month (m3/s)
01 8859.680
02 8541.070
03 8129.680
04 14716.700
05 12152.300
06 8938.330
07 8411.940
08 8684.520
09 8921.670
10 8730.970
11 10509.300
12 9980.000
1962
Month (m3/s)
01 9398.710
02 9215.710
03 9029.680
04 14800.000
05 13095.800
06 9760.330
07 8796.770
08 8911.290
09 8481.330
10 8941.940
11 9866.330
12 8684.840
 1961
Month (m3/s)
01 9514.840
02 8934.290
03 9364.840
04 13843.300
05 15187.100
06 12830.000
07 11377.400
08 10525.800
09 10459.000
10 9461.940
11 8913.670
12 9720.320
1960
Month (m3/s)
01 10696.800
02 10473.400
03 10358.100
04 20200.000
05 19429.000
06 12886.700
07 12506.500
08 10910.300
09 9349.670
10 8479.680
11 9158.000
12 8857.740
1959
Month (m3/s)
01 8739.680
02 8904.290
03 8938.060
04 16403.300
05 13848.400
06 11643.300
07 10206.800
08 9670.000
09 9105.330
10 9435.480
11 11580.000
12 11554.800
1958
Month (m3/s)
01 11032.300
02 10066.400
03 10438.100
04 16430.000
05 12216.100
06 11196.700
07 10544.200
08 9818.060
09 9753.000
10 10300.600
11 10257.000
12 9908.060
1957
Month (m3/s)
01 10436.500
02 9860.000
03 10861.300
04 12293.300
05 11864.500
06 10800.000
07 12822.60
08 9944.840
09 9892.670
10 9903.550
11 11290.000
12 11958.100
1956
Month (m3/s)
01 10091.300
02 9490.690
03 9620.650
04 14930.000
05 16341.900
06 13820.000
07 11445.200
08 10854.800
09 11296.700
10 11071.000
11 10021.000
12 9840.320
1955
Month (m3/s)
01 11554.800
02 10599.600
03 12271.000
04 21530.000
05 16087.100
06 11933.300
07 10384.800
08 9920.320
09 9612.330
10 9661.610
11 11376.700
12 10203.900
Data provided by:
Modelling and Operational Oceanography Division, Canadian Hydrographic Service - Quebec Region, Maurice Lamontagne Institute, Fisheries and Oceans Canada.
For more information: denis.lefaivre@dfo-mpo.gc.ca
Methodology:
The monthly mean run off is estimated using a one dimensional model using the method described in the reference: Bourgault, D., and V.G. Koutitonsky, 1999. Real-Time Monitoring of the Freshwater Discharge at the Head of the St. Lawrence Estuary. ATMOSPHERE-OCEAN, 37, 203-220.