Results
| Country: | Canada
| | Station: | Cornwall | | River: | St.Lawrence | | Area: | 774410 km2 | | Lat: | 45 | | Lon: | -74.78 | | Source: | RivDIS | | PointID: | 311 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1966 | | Ending Year: | 1984 | | Total Years: | 19 | | Total Usable Years: | 19 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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| 1966 | 6290 | 6290 | 6630 | 6630 | 6000 | 6000 | 6200 | 6230 | 6260 | 6120 | 6000 | 6140 | 6232.5 |
| 1967 | 6200 | 6460 | 6090 | 6000 | 6200 | 6170 | 6400 | 6600 | 6570 | 7080 | 7840 | 7960 | 6630.83 |
| 1968 | 6810 | 7050 | 6710 | 7430 | 6970 | 6720 | 7170 | 7420 | 7660 | 7420 | 7190 | 7120 | 7139.17 |
| 1969 | 6660 | 7150 | 7230 | 7490 | 7800 | 8240 | 8410 | 8340 | 7860 | 7230 | 7020 | 6890 | 7526.67 |
| 1970 | 6440 | 6660 | 6660 | 6700 | 7050 | 7060 | 7260 | 7510 | 7310 | 7440 | 7490 | 7340 | 7076.67 |
| 1971 | 6650 | 7020 | 7450 | 7670 | 8070 | 7730 | 7390 | 7330 | 7450 | 7330 | 6990 | 6650 | 7310.83 |
| 1972 | 6290 | 6540 | 7190 | 7730 | 8240 | 8490 | 8780 | 8780 | 8780 | 8550 | 8300 | 7640 | 7942.5 |
| 1973 | 7130 | 7900 | 8470 | 9200 | 9540 | 9910 | 9910 | 9140 | 8970 | 8660 | 8320 | 7530 | 8723.33 |
| 1974 | 6795 | 7503 | 8551 | 8778 | 8721 | 9259 | 9514 | 9344 | 8891 | 8579 | 7843 | 7956 | 8477.83 |
| 1975 | 7260 | 7070 | 8180 | 8530 | 8660 | 8720 | 8220 | 8010 | 7970 | 8180 | 8140 | 7450 | 8032.5 |
| 1976 | 6990 | 7380 | 8200 | 8650 | 9300 | 9870 | 9900 | 9230 | 8760 | 8540 | 8400 | 6770 | 8499.17 |
| 1977 | 6270 | 6090 | 7000 | 7800 | 7930 | 7440 | 7060 | 7350 | 7830 | 8480 | 8390 | 7280 | 7410 |
| 1978 | 7060 | 8060 | 8470 | 8300 | 8910 | 8720 | 8230 | 7880 | 7760 | 7460 | 7040 | 6370 | 7855 |
| 1979 | 6270 | 7030 | 7640 | 8050 | 8220 | 8390 | 7910 | 7780 | 8000 | 8270 | 8150 | 8170 | 7823.33 |
| 1980 | 7180 | 7170 | 7150 | 7860 | 8380 | 8240 | 8140 | 8310 | 8530 | 8110 | 7920 | 7120 | 7842.5 |
| 1981 | 6690 | 6800 | 7500 | 7340 | 7010 | 7160 | 7450 | 7900 | 8390 | 8470 | 8410 | 8490 | 7634.17 |
| 1982 | 6800 | 7100 | 7210 | 7750 | 8150 | 8210 | 8240 | 7870 | 7700 | 7500 | 7540 | 7650 | 7643.33 |
| 1983 | 6570 | 6930 | 7600 | 7800 | 7970 | 8430 | 7980 | 7820 | 7860 | 7710 | 7640 | 7490 | 7650 |
| 1984 | 6740 | 7480 | 7920 | 7990 | 8690 | 8760 | 8650 | 8630 | 8430 | 7670 | 7500 | 7360 | 7985 |
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| Avg | 6689.21 | 7035.95 | 7465.84 | 7773.58 | 7990.05 | 8079.95 | 8042.84 | 7972.32 | 7946.37 | 7831.53 | 7690.68 | 7335.58 | 7654.49 |
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| Std Dev | 325.88 |
492.19 |
681.54 |
753.89 |
941.06 |
1074.16 |
1012.97 |
810.6 |
713.31 |
657.01 |
622.52 |
585.66 |
599.87 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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