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St. Lawrence River water level at LaSalle today

Is the St. Lawrence River at LaSalle within its normal range for the date?

The St. Lawrence River at LaSalle read 0.835 m at .

Level now

within the normal range for the date

0.835 m

Provisional

within the normal range for the date

0.835 mNormal for the date0.64 m to 1.38 mMedian 0.95 m
The normal range for 26 October is 0.64 m to 1.38 m: the 10th to 90th percentile of the daily averages from 19 October to 2 November in 72 years between 1932 and 2025.
Table: where the water stands
LevelValue
Newest reading0.835 m,
Normal range for the date0.64 m to 1.38 m
Median for the date0.95 m
Past day
-0.036 m
Past week
-0.167 m

The gauge reads the height of the water above a fixed zero, not the depth of the river.

Level history

within the normal range for the date

On the St. Lawrence River at LaSalle averaged 0.903 m.

The last 90 days, against the normal range for each day

The last 90 days, against the normal range for each day 0.75 m 1.00 m 1.25 m 1.50 m 0.903 m
  • Level
  • Normal range for the date
  • Median for the date
  • A year earlier
Daily averages of the St. Lawrence River at LaSalle from 28 July 2026 to 25 October 2026, with the normal range for each day and the same days a year earlier.
Table: The last 90 days, against the normal range for each day
DayDaily average (m)Normal rangeMedianA year earlier
no value0.680 m to 1.448 m1.087 m0.996 m
no value0.680 m to 1.451 m1.078 m1.054 m
no value0.680 m to 1.451 m1.076 m1.011 m
no value0.680 m to 1.448 m1.070 m1.013 m
no value0.680 m to 1.442 m1.070 m1.010 m
no value0.677 m to 1.441 m1.067 m0.994 m
no value0.677 m to 1.441 m1.066 m0.934 m
no value0.675 m to 1.441 m1.066 m0.918 m
no value0.677 m to 1.441 m1.066 m0.907 m
no value0.674 m to 1.442 m1.065 m0.944 m
no value0.671 m to 1.441 m1.064 m0.956 m
no value0.665 m to 1.441 m1.064 m0.884 m
no value0.665 m to 1.440 m1.064 m0.856 m
no value0.662 m to 1.439 m1.064 m0.860 m
no value0.656 m to 1.437 m1.064 m0.822 m
no value0.650 m to 1.436 m1.064 m0.803 m
no value0.647 m to 1.436 m1.064 m0.843 m
no value0.647 m to 1.435 m1.064 m0.887 m
no value0.640 m to 1.429 m1.061 m0.782 m
no value0.640 m to 1.424 m1.061 m0.820 m
no value0.637 m to 1.424 m1.058 m0.846 m
no value0.637 m to 1.421 m1.057 m0.807 m
no value0.637 m to 1.415 m1.046 m0.771 m
no value0.636 m to 1.404 m1.041 m0.810 m
no value0.634 m to 1.398 m1.040 m0.799 m
no value0.636 m to 1.390 m1.037 m0.829 m
no value0.637 m to 1.387 m1.034 m0.832 m
no value0.637 m to 1.383 m1.034 m0.778 m
no value0.637 m to 1.375 m1.031 m0.823 m
no value0.637 m to 1.372 m1.029 m0.789 m
no value0.637 m to 1.367 m1.028 m0.767 m
no value0.633 m to 1.357 m1.025 m0.786 m
no value0.631 m to 1.343 m1.025 m0.815 m
no value0.633 m to 1.341 m1.022 m0.817 m
no value0.635 m to 1.336 m1.021 m0.746 m
no value0.637 m to 1.329 m1.018 m0.745 m
no value0.637 m to 1.320 m1.015 m0.767 m
no value0.635 m to 1.317 m1.012 m0.755 m
no value0.630 m to 1.316 m1.009 m0.754 m
no value0.630 m to 1.317 m1.006 m0.754 m
no value0.629 m to 1.317 m1.004 m0.750 m
no value0.628 m to 1.327 m0.999 m0.733 m
no value0.628 m to 1.325 m0.999 m0.724 m
no value0.628 m to 1.325 m0.996 m0.727 m
1.158 m0.628 m to 1.328 m0.990 m0.728 m
1.149 m0.628 m to 1.328 m0.986 m0.717 m
1.189 m0.628 m to 1.334 m0.982 m0.699 m
1.275 m0.628 m to 1.336 m0.978 m0.705 m
1.306 m0.628 m to 1.336 m0.976 m0.707 m
1.302 m0.628 m to 1.339 m0.974 m0.707 m
1.290 m0.628 m to 1.339 m0.975 m0.704 m
1.293 m0.628 m to 1.339 m0.973 m0.712 m
1.297 m0.628 m to 1.339 m0.973 m0.723 m
1.262 m0.628 m to 1.336 m0.970 m0.702 m
1.249 m0.628 m to 1.336 m0.967 m0.706 m
1.229 m0.627 m to 1.332 m0.966 m0.676 m
1.214 m0.625 m to 1.325 m0.966 m0.696 m
1.231 m0.625 m to 1.323 m0.964 m0.721 m
1.240 m0.619 m to 1.323 m0.964 m0.717 m
1.239 m0.619 m to 1.323 m0.964 m0.715 m
1.192 m0.619 m to 1.329 m0.961 m0.734 m
1.125 m0.619 m to 1.335 m0.961 m0.732 m
1.113 m0.619 m to 1.342 m0.961 m0.722 m
1.139 m0.616 m to 1.342 m0.959 m0.715 m
1.124 m0.616 m to 1.342 m0.955 m0.700 m
1.107 m0.616 m to 1.342 m0.953 m0.709 m
1.115 m0.616 m to 1.340 m0.951 m0.708 m
1.078 m0.616 m to 1.340 m0.950 m0.702 m
1.015 m0.616 m to 1.340 m0.946 m0.725 m
1.042 m0.616 m to 1.335 m0.936 m0.714 m
1.025 m0.616 m to 1.335 m0.933 m0.708 m
0.983 m0.616 m to 1.339 m0.933 m0.712 m
1.024 m0.616 m to 1.340 m0.930 m0.692 m
0.978 m0.619 m to 1.342 m0.930 m0.715 m
0.958 m0.619 m to 1.342 m0.926 m0.687 m
0.959 m0.619 m to 1.339 m0.933 m0.708 m
0.930 m0.619 m to 1.337 m0.934 m0.716 m
0.952 m0.619 m to 1.334 m0.936 m0.696 m
1.018 m0.619 m to 1.335 m0.938 m0.715 m
1.037 m0.619 m to 1.343 m0.941 m0.700 m
1.070 m0.620 m to 1.344 m0.942 m0.703 m
1.125 m0.625 m to 1.351 m0.942 m0.709 m
1.047 m0.628 m to 1.356 m0.941 m0.850 m
1.025 m0.628 m to 1.357 m0.945 m0.759 m
1.018 m0.628 m to 1.358 m0.947 m0.717 m
1.000 m0.631 m to 1.360 m0.952 m0.792 m
0.962 m0.631 m to 1.364 m0.954 m0.747 m
0.941 m0.637 m to 1.369 m0.954 m0.709 m
0.922 m0.638 m to 1.372 m0.954 m0.727 m
0.903 m0.638 m to 1.380 m0.954 m0.713 m

The last 12 months, against the normal range for each day

The last 12 months, against the normal range for each day 0.5 m 1.0 m 1.5 m 2.0 m 0.903 m
  • Level
  • Below the normal range
  • Normal range for the date
  • Median for the date
Daily averages of the St. Lawrence River at LaSalle from 25 October 2025 to 25 October 2026, with the normal range for each day.
Table: The last 12 months, against the normal range for each day
DayDaily average (m)Normal rangeMedian
0.713 m0.638 m to 1.380 m0.954 m
0.718 m0.637 m to 1.381 m0.954 m
0.698 m0.640 m to 1.387 m0.954 m
0.716 m0.637 m to 1.393 m0.954 m
0.730 m0.637 m to 1.398 m0.954 m
0.736 m0.637 m to 1.399 m0.954 m
0.828 m0.637 m to 1.402 m0.957 m
0.794 m0.631 m to 1.402 m0.957 m
0.709 m0.631 m to 1.402 m0.959 m
0.787 m0.631 m to 1.402 m0.961 m
0.737 m0.626 m to 1.409 m0.961 m
0.706 m0.626 m to 1.409 m0.963 m
0.735 m0.626 m to 1.412 m0.963 m
0.739 m0.625 m to 1.415 m0.965 m
0.783 m0.625 m to 1.420 m0.969 m
0.708 m0.631 m to 1.420 m0.970 m
0.762 m0.634 m to 1.419 m0.971 m
0.772 m0.637 m to 1.419 m0.972 m
0.728 m0.637 m to 1.420 m0.973 m
0.714 m0.638 m to 1.420 m0.973 m
0.743 m0.640 m to 1.420 m0.975 m
0.727 m0.642 m to 1.420 m0.976 m
0.800 m0.647 m to 1.420 m0.978 m
0.794 m0.647 m to 1.420 m0.979 m
0.719 m0.650 m to 1.419 m0.977 m
0.712 m0.647 m to 1.419 m0.975 m
0.691 m0.647 m to 1.421 m0.973 m
0.719 m0.644 m to 1.421 m0.976 m
0.765 m0.644 m to 1.430 m0.979 m
0.765 m0.647 m to 1.430 m0.982 m
0.744 m0.644 m to 1.436 m0.982 m
0.731 m0.643 m to 1.439 m0.982 m
0.748 m0.643 m to 1.439 m0.982 m
0.825 m0.643 m to 1.439 m0.982 m
0.754 m0.642 m to 1.442 m0.982 m
0.781 m0.642 m to 1.447 m0.982 m
0.709 m0.643 m to 1.448 m0.984 m
0.744 m0.643 m to 1.448 m0.988 m
0.748 m0.643 m to 1.448 m0.996 m
0.708 m0.643 m to 1.448 m1.000 m
0.735 m0.643 m to 1.447 m1.002 m
0.722 m0.641 m to 1.447 m1.003 m
0.692 m0.641 m to 1.445 m1.006 m
0.743 m0.639 m to 1.439 m1.004 m
0.750 m0.638 m to 1.439 m1.003 m
0.741 m0.637 m to 1.436 m1.010 m
0.739 m0.637 m to 1.433 m1.013 m
0.796 m0.634 m to 1.433 m1.013 m
0.746 m0.636 m to 1.427 m1.013 m
0.670 m0.636 m to 1.418 m1.012 m
0.722 m0.634 m to 1.409 m1.002 m
0.713 m0.628 m to 1.402 m1.000 m
0.691 m0.625 m to 1.399 m0.997 m
0.726 m0.625 m to 1.396 m0.991 m
0.681 m0.622 m to 1.393 m0.991 m
0.700 m0.623 m to 1.387 m0.988 m
0.719 m0.625 m to 1.382 m0.988 m
0.770 m0.627 m to 1.377 m0.985 m
0.737 m0.631 m to 1.368 m0.985 m
0.716 m0.643 m to 1.361 m0.984 m
0.755 m0.656 m to 1.360 m0.981 m
0.705 m0.656 m to 1.364 m0.988 m
0.686 m0.656 m to 1.365 m0.988 m
0.699 m0.670 m to 1.362 m0.988 m
0.781 m0.677 m to 1.377 m0.994 m
0.815 m0.686 m to 1.379 m0.995 m
0.704 m0.694 m to 1.379 m0.995 m
0.574 m0.695 m to 1.377 m0.999 m
no value0.700 m to 1.373 m1.000 m
no value0.704 m to 1.372 m0.997 m
no value0.708 m to 1.375 m1.000 m
no value0.708 m to 1.384 m1.000 m
no value0.708 m to 1.383 m1.000 m
no value0.706 m to 1.384 m1.005 m
no value0.698 m to 1.384 m1.008 m
no value0.698 m to 1.384 m1.015 m
no value0.706 m to 1.384 m1.021 m
no value0.706 m to 1.383 m1.028 m
no value0.699 m to 1.384 m1.034 m
no value0.706 m to 1.384 m1.039 m
no value0.708 m to 1.383 m1.040 m
no value0.711 m to 1.378 m1.043 m
no value0.720 m to 1.375 m1.046 m
no value0.726 m to 1.375 m1.051 m
no value0.744 m to 1.372 m1.053 m
no value0.751 m to 1.366 m1.056 m
no value0.759 m to 1.360 m1.058 m
no value0.771 m to 1.357 m1.061 m
no value0.774 m to 1.351 m1.061 m
no value0.777 m to 1.348 m1.061 m
no value0.778 m to 1.338 m1.064 m
no value0.784 m to 1.332 m1.060 m
no value0.788 m to 1.332 m1.056 m
no value0.793 m to 1.323 m1.055 m
no value0.793 m to 1.320 m1.056 m
no value0.796 m to 1.319 m1.058 m
no value0.796 m to 1.319 m1.057 m
no value0.793 m to 1.320 m1.057 m
no value0.790 m to 1.326 m1.053 m
no value0.784 m to 1.332 m1.052 m
no value0.775 m to 1.332 m1.049 m
no value0.759 m to 1.338 m1.043 m
no value0.753 m to 1.345 m1.040 m
no value0.738 m to 1.350 m1.038 m
no value0.729 m to 1.351 m1.033 m
no value0.725 m to 1.358 m1.028 m
no value0.714 m to 1.365 m1.025 m
no value0.705 m to 1.374 m1.023 m
no value0.699 m to 1.378 m1.021 m
no value0.698 m to 1.387 m1.017 m
no value0.698 m to 1.390 m1.015 m
no value0.689 m to 1.394 m1.009 m
no value0.686 m to 1.400 m1.009 m
no value0.680 m to 1.402 m1.009 m
no value0.677 m to 1.403 m1.009 m
no value0.680 m to 1.406 m1.009 m
no value0.677 m to 1.418 m1.009 m
no value0.677 m to 1.421 m1.015 m
no value0.677 m to 1.424 m1.015 m
no value0.674 m to 1.426 m1.021 m
no value0.672 m to 1.426 m1.029 m
no value0.668 m to 1.436 m1.030 m
no value0.663 m to 1.448 m1.029 m
no value0.659 m to 1.451 m1.028 m
no value0.647 m to 1.451 m1.023 m
no value0.640 m to 1.451 m1.021 m
no value0.634 m to 1.452 m1.026 m
no value0.629 m to 1.453 m1.026 m
no value0.628 m to 1.460 m1.026 m
no value0.625 m to 1.464 m1.025 m
no value0.616 m to 1.470 m1.025 m
no value0.613 m to 1.473 m1.025 m
no value0.610 m to 1.479 m1.025 m
no value0.610 m to 1.491 m1.025 m
no value0.610 m to 1.494 m1.029 m
no value0.610 m to 1.507 m1.032 m
no value0.613 m to 1.517 m1.040 m
no value0.616 m to 1.531 m1.044 m
no value0.625 m to 1.540 m1.052 m
no value0.628 m to 1.562 m1.067 m
no value0.631 m to 1.573 m1.076 m
no value0.634 m to 1.588 m1.081 m
no value0.640 m to 1.601 m1.092 m
no value0.647 m to 1.612 m1.107 m
no value0.647 m to 1.619 m1.123 m
no value0.656 m to 1.625 m1.131 m
no value0.668 m to 1.628 m1.143 m
no value0.683 m to 1.646 m1.157 m
no value0.689 m to 1.659 m1.171 m
no value0.695 m to 1.665 m1.186 m
no value0.701 m to 1.677 m1.203 m
no value0.704 m to 1.707 m1.214 m
no value0.711 m to 1.725 m1.232 m
no value0.721 m to 1.735 m1.250 m
no value0.735 m to 1.750 m1.270 m
no value0.751 m to 1.767 m1.294 m
no value0.759 m to 1.802 m1.314 m
no value0.775 m to 1.814 m1.348 m
no value0.793 m to 1.838 m1.366 m
no value0.820 m to 1.846 m1.392 m
no value0.842 m to 1.857 m1.412 m
no value0.863 m to 1.863 m1.424 m
no value0.890 m to 1.872 m1.433 m
no value0.912 m to 1.878 m1.442 m
no value0.924 m to 1.890 m1.446 m
no value0.936 m to 1.902 m1.451 m
no value0.951 m to 1.908 m1.460 m
no value0.973 m to 1.918 m1.466 m
no value0.984 m to 1.925 m1.473 m
no value0.991 m to 1.945 m1.482 m
no value1.003 m to 1.954 m1.491 m
no value1.009 m to 1.960 m1.492 m
no value1.012 m to 1.972 m1.497 m
no value1.019 m to 1.976 m1.500 m
no value1.025 m to 1.979 m1.508 m
no value1.026 m to 1.980 m1.511 m
no value1.031 m to 1.982 m1.518 m
no value1.034 m to 1.985 m1.525 m
no value1.031 m to 1.988 m1.533 m
no value1.026 m to 1.989 m1.546 m
no value1.024 m to 1.991 m1.559 m
no value1.031 m to 1.991 m1.567 m
no value1.031 m to 1.991 m1.575 m
no value1.031 m to 1.991 m1.579 m
no value1.031 m to 1.991 m1.584 m
no value1.034 m to 1.988 m1.585 m
no value1.034 m to 1.988 m1.585 m
no value1.031 m to 1.988 m1.581 m
no value1.025 m to 1.988 m1.577 m
no value1.023 m to 1.988 m1.576 m
no value1.015 m to 1.988 m1.564 m
no value1.003 m to 1.997 m1.559 m
no value0.989 m to 2.003 m1.553 m
no value0.984 m to 2.004 m1.549 m
no value0.970 m to 2.003 m1.537 m
no value0.967 m to 2.003 m1.532 m
no value0.957 m to 2.003 m1.527 m
no value0.954 m to 2.003 m1.518 m
no value0.936 m to 2.002 m1.509 m
no value0.922 m to 2.002 m1.503 m
no value0.909 m to 2.003 m1.497 m
no value0.902 m to 2.002 m1.493 m
no value0.897 m to 2.002 m1.488 m
no value0.888 m to 1.997 m1.476 m
no value0.872 m to 1.991 m1.466 m
no value0.860 m to 1.986 m1.457 m
no value0.857 m to 1.985 m1.448 m
no value0.854 m to 1.982 m1.439 m
no value0.840 m to 1.969 m1.421 m
no value0.828 m to 1.965 m1.412 m
no value0.821 m to 1.951 m1.402 m
no value0.814 m to 1.947 m1.393 m
no value0.811 m to 1.939 m1.384 m
no value0.807 m to 1.930 m1.378 m
no value0.805 m to 1.908 m1.375 m
no value0.804 m to 1.896 m1.369 m
no value0.802 m to 1.879 m1.360 m
no value0.802 m to 1.864 m1.357 m
no value0.803 m to 1.853 m1.348 m
no value0.807 m to 1.839 m1.345 m
no value0.806 m to 1.830 m1.338 m
no value0.806 m to 1.825 m1.332 m
no value0.806 m to 1.820 m1.326 m
no value0.811 m to 1.803 m1.320 m
no value0.811 m to 1.796 m1.314 m
no value0.799 m to 1.793 m1.311 m
no value0.798 m to 1.783 m1.305 m
no value0.797 m to 1.780 m1.296 m
no value0.796 m to 1.780 m1.290 m
no value0.786 m to 1.780 m1.285 m
no value0.779 m to 1.772 m1.275 m
no value0.772 m to 1.770 m1.268 m
no value0.772 m to 1.762 m1.260 m
no value0.766 m to 1.757 m1.254 m
no value0.762 m to 1.754 m1.244 m
no value0.759 m to 1.754 m1.235 m
no value0.753 m to 1.747 m1.232 m
no value0.747 m to 1.747 m1.225 m
no value0.741 m to 1.747 m1.217 m
no value0.741 m to 1.744 m1.211 m
no value0.742 m to 1.747 m1.210 m
no value0.744 m to 1.750 m1.203 m
no value0.747 m to 1.747 m1.201 m
no value0.747 m to 1.744 m1.193 m
no value0.747 m to 1.741 m1.192 m
no value0.747 m to 1.741 m1.189 m
no value0.747 m to 1.735 m1.188 m
no value0.744 m to 1.731 m1.182 m
no value0.742 m to 1.725 m1.180 m
no value0.741 m to 1.719 m1.179 m
no value0.735 m to 1.709 m1.177 m
no value0.738 m to 1.679 m1.177 m
no value0.742 m to 1.664 m1.175 m
no value0.742 m to 1.621 m1.173 m
no value0.741 m to 1.617 m1.170 m
no value0.738 m to 1.598 m1.167 m
no value0.730 m to 1.587 m1.165 m
no value0.729 m to 1.576 m1.165 m
no value0.728 m to 1.570 m1.165 m
no value0.723 m to 1.564 m1.164 m
no value0.720 m to 1.564 m1.161 m
no value0.717 m to 1.563 m1.156 m
no value0.712 m to 1.548 m1.153 m
no value0.711 m to 1.537 m1.149 m
no value0.708 m to 1.526 m1.149 m
no value0.704 m to 1.496 m1.144 m
no value0.701 m to 1.484 m1.142 m
no value0.698 m to 1.484 m1.137 m
no value0.692 m to 1.481 m1.134 m
no value0.686 m to 1.475 m1.130 m
no value0.680 m to 1.473 m1.121 m
no value0.680 m to 1.465 m1.116 m
no value0.677 m to 1.451 m1.110 m
no value0.677 m to 1.448 m1.104 m
no value0.677 m to 1.448 m1.098 m
no value0.680 m to 1.451 m1.093 m
no value0.680 m to 1.448 m1.087 m
no value0.680 m to 1.451 m1.078 m
no value0.680 m to 1.451 m1.076 m
no value0.680 m to 1.448 m1.070 m
no value0.680 m to 1.442 m1.070 m
no value0.677 m to 1.441 m1.067 m
no value0.677 m to 1.441 m1.066 m
no value0.675 m to 1.441 m1.066 m
no value0.677 m to 1.441 m1.066 m
no value0.674 m to 1.442 m1.065 m
no value0.671 m to 1.441 m1.064 m
no value0.665 m to 1.441 m1.064 m
no value0.665 m to 1.440 m1.064 m
no value0.662 m to 1.439 m1.064 m
no value0.656 m to 1.437 m1.064 m
no value0.650 m to 1.436 m1.064 m
no value0.647 m to 1.436 m1.064 m
no value0.647 m to 1.435 m1.064 m
no value0.640 m to 1.429 m1.061 m
no value0.640 m to 1.424 m1.061 m
no value0.637 m to 1.424 m1.058 m
no value0.637 m to 1.421 m1.057 m
no value0.637 m to 1.415 m1.046 m
no value0.636 m to 1.404 m1.041 m
no value0.634 m to 1.398 m1.040 m
no value0.636 m to 1.390 m1.037 m
no value0.637 m to 1.387 m1.034 m
no value0.637 m to 1.383 m1.034 m
no value0.637 m to 1.375 m1.031 m
no value0.637 m to 1.372 m1.029 m
no value0.637 m to 1.367 m1.028 m
no value0.633 m to 1.357 m1.025 m
no value0.631 m to 1.343 m1.025 m
no value0.633 m to 1.341 m1.022 m
no value0.635 m to 1.336 m1.021 m
no value0.637 m to 1.329 m1.018 m
no value0.637 m to 1.320 m1.015 m
no value0.635 m to 1.317 m1.012 m
no value0.630 m to 1.316 m1.009 m
no value0.630 m to 1.317 m1.006 m
no value0.629 m to 1.317 m1.004 m
no value0.628 m to 1.327 m0.999 m
no value0.628 m to 1.325 m0.999 m
no value0.628 m to 1.325 m0.996 m
1.158 m0.628 m to 1.328 m0.990 m
1.149 m0.628 m to 1.328 m0.986 m
1.189 m0.628 m to 1.334 m0.982 m
1.275 m0.628 m to 1.336 m0.978 m
1.306 m0.628 m to 1.336 m0.976 m
1.302 m0.628 m to 1.339 m0.974 m
1.290 m0.628 m to 1.339 m0.975 m
1.293 m0.628 m to 1.339 m0.973 m
1.297 m0.628 m to 1.339 m0.973 m
1.262 m0.628 m to 1.336 m0.970 m
1.249 m0.628 m to 1.336 m0.967 m
1.229 m0.627 m to 1.332 m0.966 m
1.214 m0.625 m to 1.325 m0.966 m
1.231 m0.625 m to 1.323 m0.964 m
1.240 m0.619 m to 1.323 m0.964 m
1.239 m0.619 m to 1.323 m0.964 m
1.192 m0.619 m to 1.329 m0.961 m
1.125 m0.619 m to 1.335 m0.961 m
1.113 m0.619 m to 1.342 m0.961 m
1.139 m0.616 m to 1.342 m0.959 m
1.124 m0.616 m to 1.342 m0.955 m
1.107 m0.616 m to 1.342 m0.953 m
1.115 m0.616 m to 1.340 m0.951 m
1.078 m0.616 m to 1.340 m0.950 m
1.015 m0.616 m to 1.340 m0.946 m
1.042 m0.616 m to 1.335 m0.936 m
1.025 m0.616 m to 1.335 m0.933 m
0.983 m0.616 m to 1.339 m0.933 m
1.024 m0.616 m to 1.340 m0.930 m
0.978 m0.619 m to 1.342 m0.930 m
0.958 m0.619 m to 1.342 m0.926 m
0.959 m0.619 m to 1.339 m0.933 m
0.930 m0.619 m to 1.337 m0.934 m
0.952 m0.619 m to 1.334 m0.936 m
1.018 m0.619 m to 1.335 m0.938 m
1.037 m0.619 m to 1.343 m0.941 m
1.070 m0.620 m to 1.344 m0.942 m
1.125 m0.625 m to 1.351 m0.942 m
1.047 m0.628 m to 1.356 m0.941 m
1.025 m0.628 m to 1.357 m0.945 m
1.018 m0.628 m to 1.358 m0.947 m
1.000 m0.631 m to 1.360 m0.952 m
0.962 m0.631 m to 1.364 m0.954 m
0.941 m0.637 m to 1.369 m0.954 m
0.922 m0.638 m to 1.372 m0.954 m
0.903 m0.638 m to 1.380 m0.954 m

The last 10 years, weekly averages

The last 10 years, weekly averages 1 m 2 m Highest 2.542 m 0.967 m
  • Level
  • Our record
Weekly averages of the St. Lawrence River at LaSalle from the week of 24 October 2016 to 25 October 2026.
Table: The last 10 years, weekly averages
Week startingWeekly average (m)
0.882 m
0.882 m
0.880 m
0.893 m
0.876 m
0.977 m
1.016 m
0.987 m
0.901 m
0.947 m
0.777 m
0.866 m
0.905 m
1.018 m
0.908 m
0.915 m
0.986 m
1.214 m
1.584 m
1.478 m
1.199 m
1.287 m
1.386 m
1.744 m
1.921 m
2.023 m
2.058 m
2.163 m
2.187 m
2.180 m
2.183 m
2.148 m
2.120 m
1.938 m
1.920 m
2.003 m
2.099 m
1.979 m
1.859 m
1.847 m
1.747 m
1.644 m
1.660 m
1.703 m
1.632 m
1.561 m
1.482 m
1.403 m
1.364 m
1.281 m
1.349 m
1.330 m
1.311 m
1.617 m
1.689 m
1.501 m
1.486 m
1.446 m
1.495 m
1.506 m
1.484 m
1.028 m
0.971 m
1.166 m
1.480 m
1.500 m
1.570 m
1.578 m
1.522 m
1.667 m
1.779 m
1.717 m
1.632 m
1.524 m
1.551 m
1.641 m
1.453 m
1.602 m
1.682 m
1.861 m
1.855 m
1.861 m
1.834 m
1.757 m
1.759 m
1.648 m
1.508 m
1.548 m
1.489 m
1.355 m
1.314 m
1.369 m
1.353 m
1.358 m
1.288 m
1.267 m
1.283 m
1.297 m
1.255 m
1.295 m
1.239 m
1.061 m
1.135 m
1.320 m
1.311 m
1.341 m
1.402 m
1.430 m
1.352 m
1.440 m
1.491 m
1.380 m
1.436 m
1.456 m
1.512 m
1.383 m
0.937 m
1.096 m
1.345 m
1.451 m
1.519 m
1.538 m
1.567 m
1.550 m
1.532 m
1.596 m
1.601 m
1.699 m
1.796 m
1.880 m
1.915 m
2.045 m
2.131 m
2.180 m
2.192 m
2.203 m
2.181 m
2.086 m
2.102 m
2.024 m
1.894 m
1.815 m
1.747 m
1.713 m
1.671 m
1.643 m
1.630 m
1.601 m
1.565 m
1.552 m
1.500 m
1.461 m
1.431 m
1.429 m
1.325 m
1.395 m
1.418 m
1.654 m
1.654 m
1.593 m
1.530 m
1.553 m
1.492 m
1.509 m
1.457 m
1.454 m
1.725 m
1.853 m
1.706 m
1.424 m
1.632 m
1.694 m
1.541 m
1.724 m
1.702 m
1.661 m
1.947 m
1.958 m
1.986 m
2.014 m
2.010 m
2.021 m
1.981 m
1.854 m
1.982 m
1.910 m
1.749 m
1.662 m
1.714 m
1.639 m
1.613 m
1.524 m
1.489 m
1.451 m
1.417 m
1.419 m
1.421 m
1.438 m
1.415 m
1.349 m
1.336 m
1.295 m
1.356 m
1.365 m
1.363 m
1.315 m
1.205 m
1.289 m
1.415 m
1.479 m
1.492 m
1.397 m
1.336 m
1.370 m
1.470 m
1.409 m
1.304 m
1.389 m
1.555 m
1.694 m
1.699 m
1.647 m
1.206 m
1.297 m
1.363 m
1.151 m
1.457 m
1.361 m
1.369 m
1.357 m
1.433 m
1.643 m
1.396 m
1.156 m
1.093 m
1.121 m
1.253 m
1.216 m
1.191 m
1.102 m
1.055 m
0.991 m
0.986 m
0.971 m
1.039 m
1.063 m
1.092 m
1.240 m
1.280 m
1.229 m
1.180 m
1.144 m
1.125 m
1.113 m
1.076 m
1.093 m
1.127 m
1.264 m
1.227 m
1.204 m
1.323 m
1.349 m
1.413 m
1.332 m
1.410 m
1.428 m
1.410 m
1.470 m
1.491 m
1.486 m
1.475 m
1.429 m
1.302 m
1.121 m
1.134 m
1.263 m
1.356 m
1.445 m
1.475 m
1.429 m
1.509 m
1.584 m
1.831 m
1.723 m
1.758 m
1.800 m
1.844 m
1.839 m
1.864 m
1.734 m
1.788 m
1.809 m
1.844 m
1.771 m
1.766 m
1.758 m
1.627 m
1.482 m
1.405 m
1.379 m
1.326 m
1.288 m
1.299 m
1.203 m
1.187 m
1.163 m
1.067 m
1.062 m
1.127 m
1.102 m
0.974 m
0.848 m
0.812 m
0.826 m
0.802 m
0.773 m
0.843 m
0.908 m
0.952 m
1.062 m
1.034 m
1.051 m
1.208 m
1.512 m
1.400 m
1.342 m
1.267 m
1.169 m
1.208 m
1.441 m
1.281 m
1.235 m
1.275 m
1.324 m
1.368 m
1.466 m
1.704 m
1.806 m
1.856 m
1.848 m
1.943 m
2.015 m
1.804 m
1.685 m
1.548 m
1.387 m
1.315 m
1.344 m
1.342 m
1.406 m
1.351 m
1.352 m
1.376 m
1.323 m
1.363 m
1.397 m
1.364 m
1.295 m
1.242 m
1.224 m
1.207 m
1.130 m
1.115 m
1.177 m
1.202 m
1.263 m
1.333 m
1.277 m
1.237 m
1.159 m
1.117 m
1.087 m
1.176 m
1.373 m
1.271 m
1.215 m
1.253 m
1.188 m
1.249 m
1.302 m
1.306 m
1.366 m
1.253 m
1.269 m
1.409 m
1.509 m
1.377 m
1.238 m
1.260 m
1.420 m
1.643 m
1.642 m
1.623 m
1.506 m
1.369 m
1.241 m
1.224 m
1.220 m
1.244 m
1.214 m
1.427 m
1.355 m
1.411 m
1.346 m
1.318 m
1.240 m
1.355 m
1.367 m
1.304 m
1.185 m
1.119 m
1.139 m
1.106 m
1.043 m
1.026 m
1.021 m
0.984 m
0.919 m
0.889 m
0.918 m
1.036 m
0.995 m
0.866 m
0.826 m
0.951 m
0.989 m
0.957 m
1.095 m
0.937 m
0.991 m
1.024 m
0.945 m
1.017 m
0.920 m
0.863 m
0.908 m
0.950 m
1.039 m
1.502 m
1.470 m
1.566 m
1.532 m
1.447 m
1.483 m
1.658 m
1.704 m
1.651 m
1.544 m
1.376 m
1.284 m
1.156 m
1.119 m
1.185 m
1.204 m
1.206 m
1.188 m
1.086 m
1.002 m
0.904 m
0.829 m
0.804 m
0.792 m
0.751 m
0.715 m
0.704 m
0.720 m
0.710 m
0.705 m
0.733 m
0.732 m
0.744 m
0.742 m
0.749 m
0.738 m
0.756 m
0.727 m
0.738 m
0.714 m
0.726 m
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
1.193 m
1.285 m
1.210 m
1.099 m
0.996 m
1.026 m
0.967 m

The whole record since 1932, monthly averages

The whole record since 1932, monthly averages 1 m 2 m Highest 2.542 m Lowest 0.156 m 1.009 m
  • Level
  • Our record
Monthly averages of the St. Lawrence River at LaSalle from 15 December 1932 to 25 October 2026.
Table: The whole record since 1932, monthly averages
Month startingMonthly average (m)
1.011 m
0.910 m
0.773 m
0.719 m
1.614 m
1.549 m
1.117 m
0.853 m
0.753 m
0.636 m
0.541 m
0.445 m
0.611 m
0.527 m
0.690 m
0.682 m
1.468 m
1.427 m
0.968 m
0.715 m
0.467 m
0.395 m
0.391 m
0.347 m
0.610 m
0.808 m
0.628 m
0.775 m
0.946 m
0.930 m
0.779 m
0.802 m
0.649 m
0.519 m
0.470 m
0.445 m
0.497 m
0.643 m
0.477 m
0.917 m
1.355 m
1.714 m
1.253 m
0.828 m
0.626 m
0.585 m
0.681 m
0.805 m
0.616 m
0.995 m
0.982 m
0.949 m
1.350 m
1.571 m
1.197 m
1.021 m
0.973 m
0.850 m
0.806 m
1.045 m
0.970 m
1.066 m
0.961 m
1.150 m
1.705 m
1.541 m
1.168 m
0.929 m
0.919 m
0.848 m
0.835 m
0.771 m
0.739 m
0.946 m
0.773 m
0.712 m
1.401 m
1.674 m
1.303 m
1.110 m
1.020 m
0.811 m
0.767 m
0.732 m
0.674 m
0.836 m
0.670 m
0.571 m
1.189 m
1.246 m
1.338 m
1.110 m
0.859 m
0.792 m
0.694 m
0.698 m
0.778 m
0.980 m
0.787 m
0.647 m
1.299 m
1.080 m
0.786 m
0.717 m
0.645 m
0.591 m
0.648 m
0.807 m
0.687 m
0.851 m
0.766 m
0.896 m
1.342 m
1.225 m
1.142 m
0.898 m
0.832 m
0.758 m
0.719 m
0.776 m
0.834 m
1.195 m
1.097 m
1.134 m
1.493 m
2.051 m
1.750 m
1.441 m
1.283 m
1.196 m
1.070 m
1.137 m
1.092 m
1.159 m
0.890 m
0.912 m
1.122 m
1.342 m
1.108 m
1.048 m
0.963 m
0.896 m
0.833 m
0.741 m
0.784 m
0.848 m
0.955 m
1.179 m
1.479 m
1.551 m
1.489 m
1.222 m
1.111 m
1.070 m
1.249 m
1.220 m
1.193 m
1.246 m
1.119 m
1.376 m
1.374 m
1.260 m
1.258 m
1.034 m
0.958 m
0.876 m
0.898 m
0.993 m
1.001 m
1.201 m
1.135 m
1.054 m
1.778 m
2.154 m
2.245 m
1.673 m
1.371 m
1.232 m
1.119 m
1.042 m
1.051 m
1.060 m
0.901 m
1.177 m
1.535 m
1.485 m
1.350 m
1.208 m
1.128 m
0.976 m
0.879 m
0.881 m
0.849 m
0.960 m
1.086 m
1.140 m
1.590 m
1.383 m
1.079 m
0.983 m
0.771 m
0.719 m
0.673 m
0.605 m
0.702 m
0.910 m
0.905 m
0.977 m
1.524 m
1.373 m
1.225 m
1.090 m
0.971 m
0.901 m
0.850 m
0.924 m
1.046 m
1.154 m
1.004 m
1.364 m
2.203 m
1.726 m
1.393 m
1.428 m
1.207 m
1.137 m
1.109 m
1.317 m
1.276 m
1.333 m
1.320 m
1.368 m
1.872 m
1.790 m
1.660 m
1.411 m
1.306 m
1.171 m
1.153 m
1.022 m
1.162 m
1.169 m
1.232 m
1.389 m
1.721 m
1.480 m
1.278 m
1.163 m
1.066 m
1.008 m
0.901 m
0.848 m
0.885 m
0.977 m
0.981 m
1.262 m
1.734 m
1.551 m
1.438 m
1.221 m
1.063 m
1.049 m
1.269 m
1.284 m
1.242 m
1.242 m
1.103 m
1.334 m
2.002 m
1.521 m
1.308 m
1.146 m
1.041 m
0.973 m
0.979 m
1.160 m
1.071 m
1.048 m
0.961 m
0.992 m
1.435 m
1.548 m
1.434 m
1.219 m
1.121 m
1.163 m
1.088 m
0.937 m
0.915 m
1.129 m
0.985 m
1.057 m
1.061 m
1.082 m
1.017 m
1.204 m
0.903 m
0.877 m
0.841 m
0.900 m
0.925 m
0.988 m
0.903 m
0.923 m
1.304 m
0.975 m
0.915 m
0.889 m
0.787 m
0.766 m
0.799 m
0.776 m
0.892 m
0.660 m
0.707 m
0.705 m
1.412 m
1.293 m
1.143 m
0.989 m
0.800 m
0.714 m
0.662 m
0.839 m
0.974 m
1.070 m
0.976 m
0.959 m
1.749 m
1.853 m
1.437 m
1.396 m
1.157 m
0.843 m
0.581 m
0.643 m
0.691 m
0.988 m
0.848 m
0.763 m
1.030 m
1.210 m
1.349 m
1.223 m
1.043 m
0.989 m
0.868 m
0.710 m
0.784 m
0.866 m
0.843 m
0.744 m
0.989 m
0.873 m
0.717 m
0.650 m
0.675 m
0.641 m
0.639 m
0.654 m
0.661 m
0.836 m
0.764 m
0.589 m
0.944 m
0.626 m
0.611 m
0.605 m
0.621 m
0.625 m
0.601 m
0.620 m
0.842 m
0.921 m
0.719 m
0.649 m
0.640 m
0.546 m
0.568 m
0.516 m
0.526 m
0.513 m
0.518 m
0.484 m
0.490 m
0.643 m
0.639 m
0.387 m
0.564 m
0.590 m
0.449 m
0.478 m
0.583 m
0.650 m
0.904 m
0.880 m
0.936 m
1.048 m
0.997 m
1.198 m
1.195 m
0.924 m
0.827 m
0.705 m
0.730 m
0.705 m
0.688 m
0.757 m
1.058 m
0.966 m
1.076 m
0.777 m
1.269 m
1.187 m
1.024 m
0.923 m
0.824 m
0.841 m
1.113 m
1.551 m
1.409 m
1.184 m
1.201 m
1.141 m
1.478 m
1.065 m
0.931 m
1.082 m
1.078 m
1.133 m
1.058 m
1.034 m
1.030 m
1.226 m
1.181 m
1.146 m
1.600 m
1.613 m
1.497 m
1.411 m
1.379 m
1.200 m
1.032 m
1.113 m
1.059 m
1.083 m
1.013 m
0.965 m
1.289 m
1.381 m
1.196 m
1.197 m
1.193 m
1.087 m
1.150 m
1.214 m
1.219 m
1.196 m
1.153 m
1.185 m
1.688 m
1.742 m
1.261 m
1.075 m
1.039 m
1.067 m
1.016 m
0.897 m
0.881 m
0.914 m
1.009 m
1.104 m
1.638 m
1.921 m
1.624 m
1.683 m
1.602 m
1.524 m
1.492 m
1.559 m
1.308 m
1.267 m
1.426 m
1.834 m
1.980 m
1.963 m
1.879 m
1.764 m
1.547 m
1.479 m
1.455 m
1.374 m
1.245 m
1.314 m
1.349 m
1.585 m
1.937 m
2.195 m
1.973 m
1.736 m
1.560 m
1.428 m
1.378 m
1.318 m
1.379 m
1.187 m
1.115 m
1.423 m
1.731 m
1.684 m
1.546 m
1.280 m
1.171 m
1.192 m
1.282 m
1.327 m
1.240 m
1.184 m
1.307 m
1.622 m
2.138 m
2.005 m
1.781 m
1.726 m
1.536 m
1.420 m
1.422 m
1.338 m
1.046 m
1.300 m
0.919 m
1.352 m
1.668 m
1.400 m
1.076 m
0.959 m
0.996 m
1.168 m
1.492 m
1.444 m
1.265 m
1.369 m
1.500 m
1.444 m
1.855 m
1.780 m
1.497 m
1.289 m
1.213 m
1.149 m
1.132 m
0.983 m
0.802 m
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
0.953 m
0.839 m
0.873 m
1.098 m
1.205 m
1.180 m
1.308 m
1.211 m
1.075 m
0.852 m
0.732 m
0.732 m
0.778 m
0.779 m
0.829 m
1.253 m
0.929 m
0.706 m
0.657 m
0.647 m
0.652 m
0.716 m
0.818 m
0.908 m
0.817 m
0.777 m
1.092 m
1.453 m
1.556 m
1.649 m
1.321 m
1.056 m
0.782 m
0.706 m
0.710 m
0.620 m
0.765 m
0.648 m
0.628 m
0.836 m
0.871 m
1.068 m
0.908 m
1.071 m
0.872 m
0.976 m
1.289 m
1.325 m
1.229 m
1.236 m
1.203 m
1.401 m
1.394 m
1.230 m
1.166 m
1.145 m
1.240 m
1.121 m
0.973 m
1.061 m
1.030 m
1.156 m
1.168 m
1.731 m
1.441 m
1.111 m
0.915 m
0.798 m
0.818 m
0.966 m
1.055 m
1.156 m
0.992 m
1.180 m
1.366 m
1.565 m
1.146 m
0.846 m
0.883 m
0.966 m
0.927 m
1.275 m
1.630 m
1.557 m
1.264 m
1.282 m
1.368 m
1.520 m
1.285 m
1.103 m
0.931 m
0.746 m
0.649 m
0.680 m
0.701 m
0.603 m
0.975 m
1.094 m
1.199 m
1.778 m
1.682 m
1.410 m
1.323 m
1.367 m
1.136 m
0.980 m
1.059 m
1.071 m
1.159 m
1.245 m
1.391 m
1.713 m
1.637 m
1.378 m
1.281 m
1.301 m
1.102 m
1.018 m
1.081 m
1.076 m
0.860 m
0.993 m
1.119 m
0.960 m
0.675 m
0.664 m
0.770 m
0.877 m
0.904 m
1.151 m
1.070 m
1.213 m
0.979 m
1.010 m
1.248 m
1.525 m
1.715 m
1.560 m
1.345 m
1.157 m
1.046 m
1.018 m
1.087 m
1.221 m
0.965 m
1.272 m
1.616 m
1.341 m
1.106 m
0.818 m
0.672 m
0.631 m
0.654 m
0.681 m
0.695 m
0.705 m
0.834 m
0.955 m
0.941 m
1.285 m
1.340 m
1.212 m
1.127 m
1.004 m
0.996 m
0.903 m
1.259 m
1.029 m
1.091 m
1.107 m
0.966 m
1.530 m
1.808 m
1.486 m
1.306 m
1.208 m
1.192 m
1.203 m
1.170 m
1.017 m
1.018 m
1.137 m
0.818 m
1.097 m
0.956 m
1.014 m
1.243 m
1.258 m
1.279 m
1.120 m
1.188 m
1.120 m
0.984 m
1.193 m
1.697 m
1.855 m
1.616 m
1.192 m
1.001 m
0.949 m
0.919 m
0.841 m
0.881 m
0.982 m
0.883 m
1.060 m
1.367 m
1.907 m
2.176 m
2.007 m
1.951 m
1.682 m
1.471 m
1.325 m
1.568 m
1.383 m
1.309 m
1.602 m
1.626 m
1.609 m
1.842 m
1.630 m
1.386 m
1.307 m
1.272 m
1.216 m
1.396 m
1.444 m
1.232 m
1.501 m
1.572 m
1.835 m
2.156 m
2.105 m
1.782 m
1.618 m
1.486 m
1.410 m
1.604 m
1.483 m
1.675 m
1.677 m
1.882 m
1.991 m
1.824 m
1.613 m
1.438 m
1.383 m
1.343 m
1.339 m
1.401 m
1.408 m
1.567 m
1.317 m
1.412 m
1.239 m
1.192 m
1.001 m
1.152 m
1.170 m
1.119 m
1.276 m
1.396 m
1.470 m
1.264 m
1.389 m
1.616 m
1.794 m
1.805 m
1.765 m
1.414 m
1.236 m
1.099 m
0.878 m
0.838 m
1.067 m
1.376 m
1.258 m
1.341 m
1.783 m
1.835 m
1.366 m
1.374 m
1.355 m
1.211 m
1.195 m
1.236 m
1.209 m
1.234 m
1.299 m
1.375 m
1.501 m
1.388 m
1.272 m
1.346 m
1.300 m
1.101 m
0.975 m
0.949 m
0.933 m
1.003 m
0.929 m
1.225 m
1.520 m
1.589 m
1.193 m
1.151 m
0.846 m
0.722 m
0.724 m
0.747 m
0.723 m
no value
no value
no value
no value
no value
no value
no value
no value
1.220 m
1.009 m

How this compares

  • The daily average on 25 October 2026 was 0.903 m, the thirty-first lowest for 25 October in 73 years of record (1933 to 2026). The newest value is provisional.
  • That is 0.38 m below the median of 1.28 m for 25 October over the last 10 years. The newest value is provisional.

Same date in past years

25 October in the last 10 years

DayLevelAgainst the normal range for the date
0.713 m
0.905 m
1.255 m
0.81 m
1.314 m
1.426 m
1.444 m
1.40 m
1.324 m
0.915 m

Year by year

The lowest and highest daily average of each year

The lowest and highest daily average of each year 1 m 2 m Highest 2.542 m, 1943 Lowest 0.156 m, 1965
  • Each year, lowest to highest
  • The year so far
  • Lowest in our series
  • Highest in our series
The lowest and highest daily average of the St. Lawrence River at LaSalle in each year from 1933 to 2025 with a value on at least 300 days, and in 2026 so far. The lowest daily average in our series since 15 December 1932 was 0.156 m, on 28 March 1965. The highest was 2.542 m, on 14 May 1943.
Table: The lowest and highest daily average of each year
YearLowest daily average (m)DayHighest daily average (m)DayDays with a value
0.375 m1.872 m365
0.256 m1.951 m365
0.317 m1.171 m365
0.192 m2.024 m366
0.692 m1.945 m365
0.54 m2.128 m365
0.543 m1.893 m365
0.424 m1.524 m366
0.391 m1.646 m365
0.516 m1.567 m365
0.826 m2.542 m365
0.647 m1.54 m366
0.516 m1.948 m365
0.772 m1.704 m365
0.802 m2.43 m365
0.708 m1.829 m366
0.50 m1.756 m365
0.671 m1.838 m365
0.759 m2.497 m365
0.927 m2.164 m366
0.772 m1.966 m365
0.704 m2.097 m365
0.854 m2.186 m365
0.628 m1.738 m366
0.72 m1.494 m365
0.656 m1.488 m365
0.476 m1.601 m365
0.473 m2.061 m366
0.558 m1.406 m365
0.516 m1.454 m365
0.372 m1.491 m365
0.278 m1.332 m366
0.156 m1.061 m365
0.619 m1.43 m365
0.47 m1.662 m365
0.692 m1.713 m366
0.881 m1.826 m365
0.701 m1.555 m365
0.72 m2.292 m365
0.72 m2.213 m366
0.915 m2.347 m365
1.073 m2.35 m365
0.863 m2.259 m365
0.82 m2.521 m366
0.604 m2.015 m365
0.549 m2.18 m365
0.567 m1.56 m366
0.478 m1.853 m362
0.506 m1.962 m365
0.46 m1.77 m365
0.839 m1.664 m366
0.692 m1.978 m365
0.688 m1.933 m365
0.409 m1.796 m365
0.547 m1.958 m366
0.809 m1.925 m365
0.614 m1.568 m365
0.834 m1.894 m365
0.59 m1.859 m366
0.698 m1.623 m365
0.779 m1.927 m365
0.684 m1.366 m365
0.742 m1.921 m366
0.718 m2.229 m365
0.789 m1.916 m365
0.835 m2.212 m365
0.916 m2.047 m366
0.956 m1.806 m365
0.693 m1.905 m365
0.989 m2.046 m365
0.807 m1.794 m366
0.574 m1.747 m365
so far, provisional0.903 m1.306 m46

Each year from January to December, weekly averages

Each year from January to December, weekly averages 1 m 2 m 1965, lowest day 2026 so far
  • The year so far
  • , the year before
  • Year of the lowest day in our series
  • Other years
  • Normal range for the week
The weekly averages of the St. Lawrence River at LaSalle in each year from 1965 to 2025 with a value in at least 26 weeks, and in 2026 so far, on one axis from January to December, with the normal range for each week. The lowest daily average in our series since 15 December 1932 was in 1965. Each week is 7 days counted from 1 January (in a leap year, the weeks after 29 February start a day earlier), the last to 31 December.
Table: Each year from January to December, weekly averages
Week so far Weekly average (m), lowest day Weekly average (m)Normal range (m)
to no value0.483 m0.708 m to 1.384 m
to no value0.560 m0.699 m to 1.384 m
to no value0.633 m0.751 m to 1.366 m
to no value0.851 m0.788 m to 1.332 m
to no value0.795 m0.784 m to 1.332 m
to no value0.696 m0.714 m to 1.365 m
to no value0.560 m0.680 m to 1.402 m
to no value0.581 m0.672 m to 1.426 m
to no value0.493 m0.629 m to 1.453 m
to no value0.469 m0.610 m to 1.494 m
to no value0.377 m0.634 m to 1.588 m
to no value0.372 m0.689 m to 1.659 m
to no value0.305 m0.751 m to 1.767 m
to no value0.331 m0.890 m to 1.872 m
to no value0.630 m0.991 m to 1.945 m
to no value0.691 m1.031 m to 1.982 m
to no value0.621 m1.031 m to 1.991 m
to no value0.589 m1.015 m to 1.988 m
to no value0.664 m0.954 m to 2.003 m
to no value0.593 m0.872 m to 1.991 m
to no value0.557 m0.814 m to 1.947 m
to no value0.482 m0.803 m to 1.853 m
to no value0.463 m0.799 m to 1.793 m
to no value0.456 m0.772 m to 1.762 m
to no value0.445 m0.741 m to 1.744 m
to no value0.433 m0.747 m to 1.735 m
to no value0.441 m0.742 m to 1.621 m
to no value0.493 m0.720 m to 1.564 m
to no value0.497 m0.698 m to 1.484 m
to no value0.487 m0.677 m to 1.448 m
to no value0.485 m0.677 m to 1.441 m
to no value0.550 m0.665 m to 1.440 m
to no value0.610 m0.640 m to 1.424 m
to no value0.624 m0.637 m to 1.387 m
to no value0.646 m0.633 m to 1.341 m
to no value0.617 m0.629 m to 1.317 m
to 1.238 m0.639 m0.628 m to 1.336 m
to 1.254 m0.631 m0.628 m to 1.336 m
to 1.167 m0.704 m0.619 m to 1.335 m
to 1.052 m0.810 m0.616 m to 1.340 m
to 0.974 m0.848 m0.619 m to 1.339 m
to 1.046 m0.955 m0.628 m to 1.356 m
to no value1.002 m0.638 m to 1.380 m
to no value0.918 m0.631 m to 1.402 m
to no value0.841 m0.625 m to 1.420 m
to no value0.840 m0.642 m to 1.420 m
to no value0.870 m0.644 m to 1.430 m
to no value0.968 m0.642 m to 1.447 m
to no value0.949 m0.641 m to 1.445 m
to no value0.892 m0.636 m to 1.418 m
to no value0.926 m0.625 m to 1.382 m
to no value0.965 m0.670 m to 1.362 m
Every year
YearDays with a valueDays below the normal range
to 470
3651
3660
3650
3650
3653
3660
3650
3650
3650
3660
36517
3652
3656
36664
3650
36583
3650
3667
36530
3656
3650
3660
365102
36529
362127
36625
3653
3654
3660
3650
3650
3650
3660
3650
3651
3650
3660
3657
36546
365230
366306
365228
365144
36519
36643
36564
3651
3658
3661
3650
3652
3650
3660
3651
3652
36543
3661
3650
3650
3657
3662
3650
36526
365115
36672
36525
3656
3651
366153
365227
365209
36597
170

How it compares

That is within the normal range for the date.

Records

  • Highest daily average in our series since 15 December 1932: 2.542 m on 14 May 1943.
  • Lowest daily average in our series since 15 December 1932: 0.156 m on 28 March 1965.

Also on this water

About this gauge

LaSalle is a gauge on the St. Lawrence River in Canada.

It lies at 45.4150° N, 73.6232° W.

Its readings come from the Water Survey of Canada (Environment and Climate Change Canada).

Our readings for this gauge go back to 15 December 1932.

The Water Survey of Canada publishes its real-time readings as preliminary data that it reviews and approves later.

The newest reading is provisional: the source may still correct it.

About these figures

The normal range for 25 October is 0.64 m to 1.38 m: the 10th to 90th percentile of the daily averages from 18 October to 1 November in 72 years between 1932 and 2025.

Keep exploring

Sources