World Water Levels

normal for the date

St. Clair River at Fort Gratiot: history

On the St. Clair River at Fort Gratiot averaged 176.442 m above IGLD 1985.

That is within the normal range for the date. The normal range for 4 October is 175.98 m to 177.01 m: the 10th to 90th percentile of the daily averages from 27 September to 11 October in 53 years between 1970 and 2025.

The last 90 days, against the normal range for each day
The last 90 days, against the normal range for each day 176.0 m 176.5 m 177.0 m 177.5 m Highest 177.592 m 176.442 m
  • Level
  • Normal range for the date
  • Median for the date
  • A year earlier
  • Our record
Daily averages of the St. Clair River at Fort Gratiot from 7 July 2026 to 4 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
176.642 m176.094 m to 177.179 m176.673 m176.496 m
176.609 m176.094 m to 177.183 m176.673 m176.471 m
176.634 m176.094 m to 177.184 m176.674 m176.439 m
176.656 m176.094 m to 177.184 m176.682 m176.469 m
176.658 m176.098 m to 177.184 m176.684 m176.440 m
176.632 m176.098 m to 177.186 m176.684 m176.404 m
176.604 m176.101 m to 177.186 m176.686 m176.469 m
176.615 m176.103 m to 177.186 m176.687 m176.466 m
176.646 m176.103 m to 177.187 m176.687 m176.452 m
176.651 m176.106 m to 177.187 m176.688 m176.433 m
176.621 m176.106 m to 177.184 m176.690 m176.500 m
176.651 m176.106 m to 177.183 m176.690 m176.472 m
176.657 m176.100 m to 177.174 m176.690 m176.444 m
176.586 m176.099 m to 177.170 m176.692 m176.494 m
176.643 m176.099 m to 177.170 m176.692 m176.509 m
176.707 m176.099 m to 177.178 m176.692 m176.449 m
176.638 m176.097 m to 177.173 m176.695 m176.416 m
176.622 m176.093 m to 177.172 m176.697 m176.412 m
176.602 m176.091 m to 177.173 m176.697 m176.467 m
176.605 m176.085 m to 177.170 m176.697 m176.446 m
176.591 m176.085 m to 177.169 m176.697 m176.472 m
176.680 m176.083 m to 177.170 m176.698 m176.470 m
176.669 m176.080 m to 177.170 m176.697 m176.488 m
176.647 m176.075 m to 177.170 m176.689 m176.508 m
176.612 m176.069 m to 177.170 m176.692 m176.496 m
no value176.070 m to 177.170 m176.689 mno value
176.672 m176.075 m to 177.170 m176.685 m176.464 m
176.638 m176.082 m to 177.170 m176.689 m176.458 m
176.593 m176.084 m to 177.170 m176.693 m176.455 m
176.580 m176.088 m to 177.168 m176.696 m176.460 m
176.606 m176.093 m to 177.164 m176.696 m176.430 m
176.587 m176.092 m to 177.159 m176.698 m176.382 m
176.594 m176.096 m to 177.158 m176.697 m176.378 m
176.596 m176.099 m to 177.158 m176.690 m176.368 m
176.588 m176.096 m to 177.158 m176.690 m176.391 m
176.607 m176.084 m to 177.156 m176.691 m176.397 m
176.589 m176.080 m to 177.151 m176.685 m176.446 m
176.596 m176.080 m to 177.138 m176.685 m176.487 m
176.614 m176.080 m to 177.145 m176.685 m176.473 m
176.585 m176.080 m to 177.145 m176.682 m176.437 m
176.565 m176.080 m to 177.151 m176.679 m176.424 m
176.627 m176.077 m to 177.151 m176.675 m176.531 m
176.575 m176.075 m to 177.154 m176.674 m176.392 m
176.608 m176.074 m to 177.149 m176.663 m176.357 m
176.590 m176.070 m to 177.142 m176.664 m176.475 m
176.549 m176.067 m to 177.142 m176.661 m176.446 m
176.547 m176.066 m to 177.142 m176.658 m176.414 m
176.650 m176.066 m to 177.148 m176.658 m176.406 m
176.654 m176.065 m to 177.143 m176.653 m176.442 m
176.596 m176.066 m to 177.139 m176.651 m176.477 m
176.524 m176.066 m to 177.141 m176.648 m176.471 m
176.593 m176.068 m to 177.144 m176.648 m176.420 m
176.570 m176.071 m to 177.144 m176.646 m176.468 m
176.522 m176.071 m to 177.140 m176.644 m176.443 m
176.526 m176.068 m to 177.138 m176.643 m176.424 m
176.506 m176.064 m to 177.132 m176.643 m176.403 m
no value176.064 m to 177.130 m176.640 m176.391 m
no value176.064 m to 177.130 m176.643 m176.370 m
no value176.064 m to 177.122 m176.648 m176.336 m
no value176.059 m to 177.122 m176.645 m176.434 m
176.578 m176.057 m to 177.121 m176.644 m176.330 m
176.589 m176.053 m to 177.119 m176.644 m176.402 m
176.547 m176.049 m to 177.118 m176.642 m176.370 m
176.526 m176.047 m to 177.115 m176.640 m176.375 m
176.492 m176.045 m to 177.113 m176.637 m176.331 m
176.581 m176.039 m to 177.106 m176.632 m176.332 m
176.552 m176.030 m to 177.102 m176.629 m176.345 m
176.504 m176.018 m to 177.097 m176.624 m176.326 m
176.584 m176.013 m to 177.099 m176.621 m176.316 m
176.571 m176.011 m to 177.099 m176.618 m176.332 m
176.416 m176.011 m to 177.099 m176.616 m176.323 m
176.564 m176.008 m to 177.096 m176.616 m176.323 m
176.538 m176.008 m to 177.095 m176.612 m176.322 m
176.564 m176.011 m to 177.095 m176.611 m176.330 m
176.478 m176.014 m to 177.092 m176.603 m176.323 m
176.538 m176.012 m to 177.082 m176.601 m176.253 m
176.540 m176.012 m to 177.080 m176.600 m176.246 m
176.511 m176.010 m to 177.076 m176.595 m176.266 m
176.462 m176.006 m to 177.052 m176.590 m176.291 m
176.440 m175.994 m to 177.054 m176.579 m176.314 m
176.472 m175.994 m to 177.052 m176.577 m176.319 m
176.500 m175.991 m to 177.051 m176.575 m176.320 m
176.505 m175.994 m to 177.043 m176.573 m176.281 m
176.506 m175.994 m to 177.036 m176.568 m176.323 m
176.456 m175.994 m to 177.030 m176.564 m176.293 m
176.411 m175.994 m to 177.027 m176.563 m176.322 m
176.444 m175.989 m to 177.024 m176.559 m176.260 m
176.545 m175.987 m to 177.024 m176.559 m176.238 m
176.499 m175.985 m to 177.024 m176.556 m176.244 m
176.442 m175.981 m to 177.014 m176.552 m176.233 m
The last 12 months, against the normal range for each day
The last 12 months, against the normal range for each day 176 m 177 m Highest 177.592 m Lowest 175.32 m 176.442 m
  • Level
  • Below the normal range
  • Normal range for the date
  • Median for the date
  • Our record
Daily averages of the St. Clair River at Fort Gratiot from 4 October 2025 to 4 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
176.233 m175.981 m to 177.014 m176.552 m
176.233 m175.978 m to 177.038 m176.553 m
176.239 m175.975 m to 177.037 m176.552 m
176.331 m175.975 m to 177.039 m176.552 m
176.349 m175.975 m to 177.039 m176.552 m
176.260 m175.973 m to 177.029 m176.556 m
176.200 m175.973 m to 177.027 m176.552 m
176.313 m175.971 m to 177.019 m176.552 m
176.218 m175.969 m to 177.019 m176.552 m
176.212 m175.966 m to 177.032 m176.551 m
176.284 m175.966 m to 177.031 m176.550 m
176.283 m175.965 m to 177.019 m176.550 m
176.233 m175.965 m to 177.017 m176.545 m
176.175 m175.960 m to 177.017 m176.542 m
176.164 m175.956 m to 177.016 m176.540 m
176.233 m175.954 m to 177.016 m176.536 m
176.287 m175.956 m to 177.016 m176.535 m
176.162 m175.956 m to 177.014 m176.527 m
176.228 m175.956 m to 177.012 m176.522 m
176.268 m175.953 m to 177.010 m176.519 m
176.270 m175.952 m to 177.008 m176.517 m
176.244 m175.944 m to 176.999 m176.516 m
176.218 m175.944 m to 176.983 m176.511 m
176.183 m175.938 m to 176.978 m176.506 m
176.116 m175.937 m to 176.970 m176.503 m
176.144 m175.924 m to 176.970 m176.497 m
176.250 m175.920 m to 176.967 m176.493 m
176.250 m175.918 m to 176.967 m176.495 m
176.200 m175.910 m to 176.970 m176.495 m
176.118 m175.907 m to 176.973 m176.494 m
176.196 m175.907 m to 176.970 m176.492 m
176.224 m175.907 m to 176.970 m176.488 m
176.198 m175.904 m to 176.973 m176.490 m
176.181 m175.896 m to 176.967 m176.495 m
176.063 m175.893 m to 176.967 m176.497 m
176.221 m175.896 m to 176.967 m176.495 m
176.240 m175.893 m to 176.967 m176.492 m
176.229 m175.896 m to 176.972 m176.490 m
176.134 m175.896 m to 176.973 m176.485 m
176.165 m175.892 m to 176.967 m176.485 m
176.210 m175.893 m to 176.961 m176.485 m
176.121 m175.896 m to 176.978 m176.484 m
176.038 m175.893 m to 176.978 m176.484 m
176.256 m175.886 m to 176.961 m176.477 m
176.198 m175.892 m to 176.960 m176.476 m
176.114 m175.885 m to 176.972 m176.476 m
176.092 m175.883 m to 176.972 m176.472 m
176.035 m175.883 m to 176.960 m176.470 m
176.098 m175.883 m to 176.972 m176.468 m
176.098 m175.873 m to 176.978 m176.465 m
176.101 m175.869 m to 176.978 m176.463 m
176.033 m175.864 m to 176.978 m176.461 m
176.034 m175.864 m to 176.976 m176.461 m
175.901 m175.864 m to 176.978 m176.463 m
176.120 m175.867 m to 176.978 m176.461 m
176.221 m175.871 m to 176.976 m176.462 m
176.077 m175.867 m to 176.974 m176.461 m
176.002 m175.865 m to 176.973 m176.460 m
176.056 m175.864 m to 176.972 m176.461 m
176.040 m175.862 m to 176.971 m176.461 m
176.011 m175.861 m to 176.959 m176.455 m
176.164 m175.863 m to 176.958 m176.459 m
175.942 m175.864 m to 176.958 m176.458 m
176.047 m175.861 m to 176.950 m176.454 m
176.094 m175.861 m to 176.950 m176.454 m
176.049 m175.859 m to 176.950 m176.454 m
175.910 m175.859 m to 176.950 m176.454 m
176.130 m175.854 m to 176.947 m176.453 m
176.094 m175.847 m to 176.941 m176.450 m
175.998 m175.846 m to 176.930 m176.448 m
176.064 m175.844 m to 176.936 m176.448 m
176.116 m175.835 m to 176.934 m176.447 m
175.958 m175.830 m to 176.917 m176.435 m
175.886 m175.825 m to 176.915 m176.431 m
175.993 m175.831 m to 176.913 m176.427 m
175.817 m175.837 m to 176.913 m176.428 m
176.000 m175.834 m to 176.911 m176.425 m
175.891 m175.827 m to 176.910 m176.423 m
176.085 m175.827 m to 176.909 m176.422 m
175.960 m175.823 m to 176.903 m176.422 m
175.936 m175.826 m to 176.895 m176.420 m
176.002 m175.823 m to 176.889 m176.420 m
176.011 m175.827 m to 176.892 m176.424 m
175.858 m175.822 m to 176.888 m176.423 m
175.928 m175.822 m to 176.888 m176.422 m
175.875 m175.821 m to 176.865 m176.419 m
176.010 m175.822 m to 176.871 m176.417 m
176.155 m175.822 m to 176.874 m176.418 m
176.104 m175.822 m to 176.875 m176.420 m
176.073 m175.821 m to 176.876 m176.426 m
176.088 m175.820 m to 176.885 m176.426 m
176.048 m175.818 m to 176.881 m176.424 m
176.008 m175.818 m to 176.884 m176.424 m
175.912 m175.818 m to 176.887 m176.430 m
175.966 m175.820 m to 176.887 m176.431 m
175.970 m175.825 m to 176.883 m176.436 m
175.911 m175.830 m to 176.882 m176.432 m
175.874 m175.824 m to 176.882 m176.430 m
175.985 m175.823 m to 176.882 m176.424 m
176.038 m175.819 m to 176.881 m176.426 m
176.004 m175.828 m to 176.879 m176.426 m
175.925 m175.831 m to 176.879 m176.426 m
176.173 m175.829 m to 176.882 m176.423 m
176.148 m175.830 m to 176.886 m176.421 m
175.912 m175.829 m to 176.882 m176.419 m
175.909 m175.822 m to 176.872 m176.421 m
175.957 m175.822 m to 176.866 m176.422 m
175.972 m175.827 m to 176.865 m176.422 m
176.033 m175.821 m to 176.860 m176.422 m
175.994 m175.817 m to 176.859 m176.421 m
176.041 m175.814 m to 176.857 m176.420 m
176.158 m175.806 m to 176.855 m176.421 m
176.102 m175.805 m to 176.851 m176.422 m
176.080 m175.810 m to 176.847 m176.429 m
176.034 m175.815 m to 176.850 m176.429 m
176.002 m175.801 m to 176.851 m176.429 m
176.053 m175.794 m to 176.852 m176.418 m
176.090 m175.795 m to 176.847 m176.419 m
176.069 m175.795 m to 176.843 m176.424 m
176.067 m175.795 m to 176.836 m176.423 m
176.035 m175.789 m to 176.846 m176.418 m
175.975 m175.789 m to 176.850 m176.418 m
176.061 m175.789 m to 176.851 m176.408 m
176.043 m175.795 m to 176.853 m176.410 m
175.939 m175.795 m to 176.853 m176.409 m
176.127 m175.792 m to 176.856 m176.409 m
176.255 m175.799 m to 176.861 m176.407 m
176.060 m175.796 m to 176.861 m176.405 m
175.933 m175.796 m to 176.861 m176.405 m
175.973 m175.790 m to 176.861 m176.404 m
176.089 m175.789 m to 176.853 m176.401 m
176.085 m175.789 m to 176.853 m176.387 m
175.987 m175.787 m to 176.857 m176.385 m
176.014 m175.786 m to 176.863 m176.385 m
175.967 m175.783 m to 176.864 m176.388 m
175.942 m175.783 m to 176.863 m176.388 m
175.995 m175.780 m to 176.863 m176.388 m
175.947 m175.780 m to 176.864 m176.399 m
175.874 m175.778 m to 176.864 m176.396 m
175.885 m175.777 m to 176.863 m176.388 m
175.969 m175.780 m to 176.853 m176.390 m
176.051 m175.774 m to 176.860 m176.389 m
176.186 m175.773 m to 176.863 m176.389 m
175.948 m175.758 m to 176.867 m176.389 m
176.009 m175.756 m to 176.868 m176.389 m
176.009 m175.782 m to 176.868 m176.388 m
175.932 m175.782 m to 176.869 m176.388 m
176.089 m175.784 m to 176.869 m176.388 m
176.066 m175.791 m to 176.884 m176.388 m
175.930 m175.787 m to 176.884 m176.388 m
175.964 m175.787 m to 176.881 m176.388 m
175.965 m175.791 m to 176.876 m176.389 m
175.916 m175.788 m to 176.877 m176.388 m
175.865 m175.791 m to 176.882 m176.388 m
175.947 m175.788 m to 176.885 m176.388 m
175.991 m175.791 m to 176.888 m176.389 m
175.981 m175.801 m to 176.891 m176.388 m
176.068 m175.806 m to 176.893 m176.389 m
176.028 m175.811 m to 176.892 m176.393 m
176.100 m175.811 m to 176.893 m176.393 m
175.957 m175.808 m to 176.895 m176.396 m
176.113 m175.796 m to 176.899 m176.404 m
176.037 m175.802 m to 176.898 m176.407 m
175.930 m175.809 m to 176.898 m176.412 m
176.149 m175.817 m to 176.902 m176.413 m
176.042 m175.820 m to 176.906 m176.413 m
176.096 m175.822 m to 176.906 m176.413 m
176.101 m175.823 m to 176.906 m176.415 m
176.074 m175.822 m to 176.906 m176.416 m
176.154 m175.827 m to 176.906 m176.417 m
176.196 m175.827 m to 176.907 m176.419 m
176.113 m175.823 m to 176.913 m176.421 m
176.071 m175.823 m to 176.911 m176.419 m
176.160 m175.823 m to 176.913 m176.418 m
176.187 m175.823 m to 176.917 m176.418 m
176.146 m175.828 m to 176.918 m176.419 m
176.093 m175.831 m to 176.922 m176.422 m
176.092 m175.829 m to 176.922 m176.423 m
176.146 m175.829 m to 176.924 m176.426 m
176.200 m175.831 m to 176.930 m176.428 m
176.079 m175.834 m to 176.940 m176.432 m
176.089 m175.834 m to 176.940 m176.432 m
176.122 m175.843 m to 176.943 m176.433 m
176.200 m175.851 m to 176.944 m176.439 m
176.281 m175.854 m to 176.946 m176.448 m
176.301 m175.858 m to 176.950 m176.459 m
176.125 m175.864 m to 176.950 m176.463 m
176.160 m175.883 m to 176.956 m176.465 m
176.260 m175.888 m to 176.966 m176.476 m
176.237 m175.890 m to 176.966 m176.481 m
176.185 m175.894 m to 176.969 m176.481 m
176.257 m175.894 m to 176.970 m176.485 m
176.287 m175.899 m to 176.970 m176.486 m
176.301 m175.904 m to 176.969 m176.492 m
176.362 m175.905 m to 176.967 m176.494 m
176.350 m175.906 m to 176.969 m176.499 m
176.350 m175.907 m to 176.971 m176.504 m
176.463 m175.918 m to 176.975 m176.510 m
176.424 m175.919 m to 176.981 m176.520 m
176.326 m175.919 m to 176.985 m176.527 m
176.417 m175.920 m to 176.996 m176.531 m
176.399 m175.925 m to 177.002 m176.538 m
176.360 m175.934 m to 177.008 m176.543 m
176.442 m175.936 m to 177.009 m176.545 m
176.450 m175.937 m to 177.013 m176.545 m
176.388 m175.940 m to 177.016 m176.545 m
176.371 m175.945 m to 177.017 m176.545 m
176.507 m175.946 m to 177.023 m176.542 m
176.486 m175.953 m to 177.028 m176.543 m
176.496 m175.960 m to 177.039 m176.543 m
176.488 m175.960 m to 177.034 m176.544 m
176.440 m175.967 m to 177.041 m176.544 m
176.423 m175.971 m to 177.034 m176.551 m
176.502 m175.971 m to 177.045 m176.551 m
176.524 m175.973 m to 177.045 m176.552 m
176.487 m175.975 m to 177.042 m176.552 m
176.463 m175.976 m to 177.045 m176.560 m
176.458 m175.979 m to 177.052 m176.560 m
176.511 m175.981 m to 177.059 m176.562 m
176.511 m175.986 m to 177.059 m176.562 m
176.442 m175.994 m to 177.059 m176.562 m
176.486 m175.995 m to 177.072 m176.571 m
176.567 m176.005 m to 177.073 m176.571 m
176.473 m176.007 m to 177.075 m176.576 m
176.463 m176.011 m to 177.079 m176.579 m
176.506 m176.013 m to 177.086 m176.582 m
176.437 m176.019 m to 177.092 m176.589 m
176.511 m176.020 m to 177.095 m176.593 m
176.569 m176.021 m to 177.100 m176.593 m
176.576 m176.026 m to 177.100 m176.596 m
176.530 m176.028 m to 177.107 m176.607 m
176.511 m176.028 m to 177.109 m176.611 m
176.490 m176.029 m to 177.110 m176.609 m
176.519 m176.029 m to 177.117 m176.608 m
176.513 m176.028 m to 177.118 m176.609 m
176.551 m176.029 m to 177.120 m176.611 m
176.560 m176.030 m to 177.120 m176.611 m
176.554 m176.031 m to 177.122 m176.616 m
176.560 m176.034 m to 177.121 m176.616 m
176.530 m176.034 m to 177.120 m176.619 m
176.565 m176.054 m to 177.118 m176.624 m
176.536 m176.058 m to 177.115 m176.625 m
176.536 m176.061 m to 177.110 m176.627 m
176.513 m176.061 m to 177.110 m176.627 m
176.497 m176.066 m to 177.137 m176.632 m
176.555 m176.070 m to 177.139 m176.635 m
176.573 m176.075 m to 177.144 m176.642 m
176.531 m176.075 m to 177.159 m176.644 m
176.515 m176.075 m to 177.156 m176.646 m
176.558 m176.077 m to 177.144 m176.647 m
176.545 m176.080 m to 177.136 m176.648 m
176.569 m176.080 m to 177.136 m176.649 m
176.579 m176.080 m to 177.148 m176.655 m
176.609 m176.082 m to 177.148 m176.656 m
176.591 m176.084 m to 177.148 m176.655 m
176.550 m176.086 m to 177.154 m176.656 m
176.557 m176.092 m to 177.169 m176.655 m
176.558 m176.074 m to 177.167 m176.648 m
176.626 m176.075 m to 177.156 m176.651 m
176.609 m176.079 m to 177.155 m176.655 m
176.605 m176.080 m to 177.154 m176.655 m
176.613 m176.081 m to 177.154 m176.656 m
176.633 m176.084 m to 177.156 m176.657 m
176.600 m176.086 m to 177.163 m176.657 m
176.588 m176.088 m to 177.169 m176.659 m
176.612 m176.090 m to 177.170 m176.660 m
176.612 m176.090 m to 177.173 m176.656 m
176.593 m176.091 m to 177.173 m176.657 m
176.587 m176.094 m to 177.173 m176.657 m
176.567 m176.096 m to 177.173 m176.661 m
176.605 m176.094 m to 177.173 m176.667 m
176.604 m176.092 m to 177.174 m176.669 m
176.617 m176.092 m to 177.174 m176.671 m
176.626 m176.096 m to 177.177 m176.672 m
176.647 m176.098 m to 177.182 m176.672 m
176.662 m176.098 m to 177.184 m176.672 m
176.642 m176.094 m to 177.179 m176.673 m
176.609 m176.094 m to 177.183 m176.673 m
176.634 m176.094 m to 177.184 m176.674 m
176.656 m176.094 m to 177.184 m176.682 m
176.658 m176.098 m to 177.184 m176.684 m
176.632 m176.098 m to 177.186 m176.684 m
176.604 m176.101 m to 177.186 m176.686 m
176.615 m176.103 m to 177.186 m176.687 m
176.646 m176.103 m to 177.187 m176.687 m
176.651 m176.106 m to 177.187 m176.688 m
176.621 m176.106 m to 177.184 m176.690 m
176.651 m176.106 m to 177.183 m176.690 m
176.657 m176.100 m to 177.174 m176.690 m
176.586 m176.099 m to 177.170 m176.692 m
176.643 m176.099 m to 177.170 m176.692 m
176.707 m176.099 m to 177.178 m176.692 m
176.638 m176.097 m to 177.173 m176.695 m
176.622 m176.093 m to 177.172 m176.697 m
176.602 m176.091 m to 177.173 m176.697 m
176.605 m176.085 m to 177.170 m176.697 m
176.591 m176.085 m to 177.169 m176.697 m
176.680 m176.083 m to 177.170 m176.698 m
176.669 m176.080 m to 177.170 m176.697 m
176.647 m176.075 m to 177.170 m176.689 m
176.612 m176.069 m to 177.170 m176.692 m
no value176.070 m to 177.170 m176.689 m
176.672 m176.075 m to 177.170 m176.685 m
176.638 m176.082 m to 177.170 m176.689 m
176.593 m176.084 m to 177.170 m176.693 m
176.580 m176.088 m to 177.168 m176.696 m
176.606 m176.093 m to 177.164 m176.696 m
176.587 m176.092 m to 177.159 m176.698 m
176.594 m176.096 m to 177.158 m176.697 m
176.596 m176.099 m to 177.158 m176.690 m
176.588 m176.096 m to 177.158 m176.690 m
176.607 m176.084 m to 177.156 m176.691 m
176.589 m176.080 m to 177.151 m176.685 m
176.596 m176.080 m to 177.138 m176.685 m
176.614 m176.080 m to 177.145 m176.685 m
176.585 m176.080 m to 177.145 m176.682 m
176.565 m176.080 m to 177.151 m176.679 m
176.627 m176.077 m to 177.151 m176.675 m
176.575 m176.075 m to 177.154 m176.674 m
176.608 m176.074 m to 177.149 m176.663 m
176.590 m176.070 m to 177.142 m176.664 m
176.549 m176.067 m to 177.142 m176.661 m
176.547 m176.066 m to 177.142 m176.658 m
176.650 m176.066 m to 177.148 m176.658 m
176.654 m176.065 m to 177.143 m176.653 m
176.596 m176.066 m to 177.139 m176.651 m
176.524 m176.066 m to 177.141 m176.648 m
176.593 m176.068 m to 177.144 m176.648 m
176.570 m176.071 m to 177.144 m176.646 m
176.522 m176.071 m to 177.140 m176.644 m
176.526 m176.068 m to 177.138 m176.643 m
176.506 m176.064 m to 177.132 m176.643 m
no value176.064 m to 177.130 m176.640 m
no value176.064 m to 177.130 m176.643 m
no value176.064 m to 177.122 m176.648 m
no value176.059 m to 177.122 m176.645 m
176.578 m176.057 m to 177.121 m176.644 m
176.589 m176.053 m to 177.119 m176.644 m
176.547 m176.049 m to 177.118 m176.642 m
176.526 m176.047 m to 177.115 m176.640 m
176.492 m176.045 m to 177.113 m176.637 m
176.581 m176.039 m to 177.106 m176.632 m
176.552 m176.030 m to 177.102 m176.629 m
176.504 m176.018 m to 177.097 m176.624 m
176.584 m176.013 m to 177.099 m176.621 m
176.571 m176.011 m to 177.099 m176.618 m
176.416 m176.011 m to 177.099 m176.616 m
176.564 m176.008 m to 177.096 m176.616 m
176.538 m176.008 m to 177.095 m176.612 m
176.564 m176.011 m to 177.095 m176.611 m
176.478 m176.014 m to 177.092 m176.603 m
176.538 m176.012 m to 177.082 m176.601 m
176.540 m176.012 m to 177.080 m176.600 m
176.511 m176.010 m to 177.076 m176.595 m
176.462 m176.006 m to 177.052 m176.590 m
176.440 m175.994 m to 177.054 m176.579 m
176.472 m175.994 m to 177.052 m176.577 m
176.500 m175.991 m to 177.051 m176.575 m
176.505 m175.994 m to 177.043 m176.573 m
176.506 m175.994 m to 177.036 m176.568 m
176.456 m175.994 m to 177.030 m176.564 m
176.411 m175.994 m to 177.027 m176.563 m
176.444 m175.989 m to 177.024 m176.559 m
176.545 m175.987 m to 177.024 m176.559 m
176.499 m175.985 m to 177.024 m176.556 m
176.442 m175.981 m to 177.014 m176.552 m
The last 10 years, weekly averages
The last 10 years, weekly averages 176.0 m 176.5 m 177.0 m 177.5 m Highest 177.592 m 176.472 m
  • Level
  • Our record
Weekly averages of the St. Clair River at Fort Gratiot from the week of 3 October 2016 to 4 October 2026.
Table: The last 10 years, weekly averages
Week startingWeekly average (m)
176.646 m
176.605 m
176.664 m
176.619 m
176.573 m
176.608 m
176.551 m
176.515 m
176.449 m
176.487 m
176.500 m
176.409 m
176.388 m
176.447 m
176.376 m
176.406 m
176.462 m
176.455 m
176.439 m
176.447 m
176.396 m
176.481 m
176.534 m
176.541 m
176.483 m
176.523 m
176.630 m
176.587 m
176.636 m
176.656 m
176.770 m
176.754 m
176.729 m
176.780 m
176.790 m
176.811 m
176.800 m
176.860 m
176.898 m
176.935 m
176.941 m
176.957 m
176.991 m
176.947 m
176.956 m
176.927 m
176.965 m
176.919 m
176.921 m
176.859 m
176.853 m
176.884 m
176.786 m
176.808 m
176.779 m
176.766 m
176.806 m
176.836 m
176.784 m
176.786 m
176.757 m
176.727 m
176.762 m
176.733 m
176.740 m
176.755 m
176.744 m
176.651 m
176.671 m
176.716 m
176.696 m
176.665 m
176.682 m
176.778 m
176.751 m
176.778 m
176.758 m
176.686 m
176.748 m
176.704 m
176.780 m
176.811 m
176.800 m
176.851 m
176.884 m
176.891 m
176.907 m
176.933 m
176.916 m
176.958 m
176.933 m
176.972 m
176.942 m
176.929 m
176.935 m
176.907 m
176.925 m
176.893 m
176.886 m
176.894 m
176.941 m
176.884 m
176.881 m
176.831 m
176.849 m
176.856 m
176.914 m
176.844 m
176.839 m
176.792 m
176.837 m
176.772 m
176.835 m
176.837 m
176.756 m
176.783 m
176.723 m
176.786 m
176.774 m
176.811 m
176.789 m
176.752 m
176.780 m
176.768 m
176.757 m
176.817 m
176.760 m
176.795 m
176.853 m
176.855 m
176.831 m
176.861 m
176.960 m
177.013 m
177.044 m
177.084 m
177.111 m
177.134 m
177.206 m
177.222 m
177.260 m
177.295 m
177.297 m
177.330 m
177.325 m
177.319 m
177.346 m
177.332 m
177.318 m
177.289 m
177.282 m
177.210 m
177.224 m
177.183 m
177.193 m
177.233 m
177.211 m
177.183 m
177.232 m
177.160 m
177.239 m
177.223 m
177.195 m
177.157 m
177.148 m
177.202 m
177.175 m
177.162 m
177.104 m
177.127 m
177.201 m
177.205 m
177.184 m
177.211 m
177.242 m
177.199 m
177.174 m
177.214 m
177.142 m
177.173 m
177.169 m
177.163 m
177.249 m
177.263 m
177.253 m
177.277 m
177.251 m
177.350 m
177.292 m
177.330 m
177.363 m
177.383 m
177.379 m
177.378 m
177.400 m
177.411 m
177.406 m
177.395 m
177.429 m
177.438 m
177.416 m
177.385 m
177.374 m
177.362 m
177.344 m
177.317 m
177.308 m
177.218 m
177.244 m
177.212 m
177.138 m
177.168 m
177.198 m
177.138 m
177.085 m
177.157 m
177.118 m
177.219 m
177.104 m
177.067 m
177.033 m
177.041 m
177.057 m
176.970 m
177.014 m
177.028 m
177.005 m
176.993 m
176.974 m
176.861 m
176.987 m
176.890 m
176.898 m
176.889 m
176.913 m
176.846 m
176.922 m
176.925 m
176.889 m
176.919 m
176.912 m
176.880 m
176.916 m
176.864 m
176.875 m
176.885 m
176.854 m
176.954 m
176.953 m
176.957 m
176.965 m
177.002 m
176.967 m
176.972 m
176.973 m
176.938 m
176.963 m
176.933 m
176.884 m
176.899 m
176.846 m
176.830 m
176.846 m
176.862 m
176.856 m
176.794 m
176.705 m
176.708 m
176.717 m
176.686 m
176.608 m
176.641 m
176.630 m
176.637 m
176.561 m
176.608 m
176.578 m
176.542 m
176.535 m
176.499 m
176.495 m
176.536 m
176.492 m
176.518 m
176.484 m
176.523 m
176.545 m
176.574 m
176.603 m
176.624 m
176.675 m
176.724 m
176.670 m
176.715 m
176.727 m
176.736 m
176.768 m
176.800 m
176.780 m
176.782 m
176.790 m
176.769 m
176.765 m
176.796 m
176.757 m
176.803 m
176.762 m
176.747 m
176.730 m
176.691 m
176.651 m
176.706 m
176.697 m
176.628 m
176.523 m
176.543 m
176.526 m
176.474 m
176.540 m
176.495 m
176.479 m
176.425 m
176.430 m
176.330 m
176.404 m
176.357 m
176.390 m
176.427 m
176.353 m
176.416 m
176.407 m
176.354 m
176.378 m
176.382 m
176.392 m
176.445 m
176.419 m
176.403 m
176.430 m
176.469 m
176.494 m
176.544 m
176.579 m
176.638 m
176.662 m
176.667 m
176.678 m
176.658 m
176.677 m
176.681 m
176.647 m
176.654 m
176.675 m
176.675 m
176.687 m
176.686 m
176.695 m
176.707 m
176.702 m
176.699 m
176.679 m
176.648 m
176.645 m
176.600 m
176.542 m
176.566 m
176.593 m
176.538 m
176.504 m
176.512 m
176.476 m
176.485 m
176.462 m
176.430 m
176.399 m
176.402 m
176.396 m
176.385 m
176.397 m
176.332 m
176.405 m
176.391 m
176.386 m
176.363 m
176.392 m
176.344 m
176.338 m
176.376 m
176.388 m
176.414 m
176.319 m
176.389 m
176.444 m
176.445 m
176.454 m
176.486 m
176.539 m
176.551 m
176.555 m
176.605 m
176.612 m
176.620 m
176.610 m
176.689 m
176.686 m
176.723 m
176.732 m
176.707 m
176.701 m
176.714 m
176.673 m
176.692 m
176.620 m
176.621 m
176.543 m
176.505 m
176.529 m
176.487 m
176.476 m
176.411 m
176.359 m
176.273 m
176.292 m
176.272 m
176.308 m
176.291 m
176.250 m
176.167 m
176.196 m
176.123 m
176.296 m
176.200 m
176.167 m
176.125 m
176.156 m
176.155 m
176.103 m
176.117 m
176.076 m
176.086 m
176.077 m
176.124 m
176.122 m
176.201 m
176.265 m
176.268 m
176.285 m
176.306 m
176.360 m
176.325 m
176.397 m
176.395 m
176.374 m
176.382 m
176.380 m
176.410 m
176.438 m
176.455 m
176.466 m
176.453 m
176.481 m
176.409 m
176.456 m
176.419 m
176.444 m
176.376 m
176.337 m
176.303 m
176.302 m
176.260 m
176.273 m
176.226 m
176.240 m
176.180 m
176.189 m
176.165 m
176.105 m
176.055 m
176.051 m
176.052 m
175.947 m
175.939 m
176.069 m
175.951 m
176.004 m
176.054 m
176.050 m
176.066 m
176.007 m
175.952 m
176.034 m
175.940 m
176.041 m
176.078 m
176.138 m
176.133 m
176.221 m
176.339 m
176.403 m
176.454 m
176.481 m
176.493 m
176.518 m
176.541 m
176.539 m
176.558 m
176.585 m
176.607 m
176.608 m
176.642 m
176.635 m
176.629 m
176.645 m
176.599 m
176.592 m
176.592 m
176.569 m
no value
176.541 m
176.524 m
176.490 m
176.472 m
The whole record since 1970, monthly averages
The whole record since 1970, monthly averages 176 m 177 m Highest 177.592 m Lowest 175.32 m 176.516 m
  • Level
  • Our record
Monthly averages of the St. Clair River at Fort Gratiot from 1 January 1970 to 4 October 2026.
Table: The whole record since 1970, monthly averages
Month startingMonthly average (m)
176.537 m
176.524 m
176.505 m
176.527 m
176.611 m
176.707 m
176.735 m
176.737 m
176.721 m
176.639 m
176.609 m
176.602 m
176.588 m
176.516 m
176.625 m
176.705 m
176.793 m
176.867 m
176.902 m
176.909 m
176.876 m
176.774 m
176.702 m
176.666 m
176.648 m
176.618 m
176.616 m
176.672 m
176.817 m
176.906 m
176.938 m
176.981 m
177.036 m
177.000 m
177.003 m
176.918 m
no value
no value
no value
no value
no value
177.223 m
177.218 m
177.222 m
177.151 m
177.054 m
176.990 m
176.923 m
176.865 m
176.905 m
176.940 m
177.009 m
177.113 m
177.189 m
177.246 m
177.185 m
177.090 m
176.968 m
176.898 m
176.834 m
176.783 m
176.783 m
176.820 m
176.897 m
176.982 m
177.049 m
177.079 m
177.043 m
177.016 m
176.890 m
176.770 m
176.765 m
176.712 m
176.698 m
176.805 m
176.974 m
177.099 m
177.115 m
177.121 m
no value
176.923 m
176.772 m
176.593 m
176.468 m
176.397 m
176.335 m
176.375 m
176.503 m
176.520 m
176.512 m
176.504 m
176.516 m
176.475 m
176.462 m
176.469 m
no value
no value
no value
176.370 m
176.492 m
no value
176.613 m
176.661 m
176.650 m
176.627 m
176.640 m
176.543 m
176.451 m
176.471 m
176.443 m
176.498 m
176.666 m
176.822 m
176.907 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
176.613 m
176.679 m
176.706 m
176.766 m
176.733 m
176.750 m
176.665 m
176.598 m
176.507 m
176.457 m
176.378 m
176.367 m
176.497 m
176.525 m
176.582 m
176.601 m
176.641 m
176.592 m
176.527 m
176.517 m
176.569 m
176.599 m
176.576 m
176.632 m
176.694 m
176.828 m
176.944 m
176.960 m
176.931 m
176.859 m
176.790 m
176.715 m
176.662 m
176.639 m
176.653 m
176.648 m
176.765 m
176.854 m
176.935 m
177.005 m
176.989 m
176.945 m
176.891 m
176.863 m
176.798 m
176.827 m
176.769 m
176.914 m
177.057 m
177.152 m
177.167 m
177.155 m
177.113 m
177.112 m
177.064 m
177.101 m
177.127 m
177.085 m
176.995 m
177.035 m
177.164 m
177.204 m
177.260 m
177.318 m
177.342 m
177.309 m
177.418 m
177.306 m
177.172 m
177.120 m
177.046 m
177.014 m
177.028 m
176.985 m
177.006 m
176.985 m
176.931 m
176.833 m
176.724 m
176.633 m
176.607 m
176.538 m
176.553 m
176.486 m
176.624 m
176.639 m
176.614 m
176.558 m
176.519 m
176.416 m
176.361 m
176.314 m
176.353 m
176.288 m
176.279 m
176.209 m
176.346 m
176.394 m
176.500 m
176.533 m
176.488 m
176.448 m
176.293 m
176.221 m
176.138 m
176.075 m
176.113 m
176.125 m
176.216 m
176.291 m
176.368 m
176.455 m
176.435 m
176.412 m
176.354 m
176.323 m
176.308 m
176.303 m
176.264 m
176.275 m
176.423 m
176.526 m
176.600 m
176.591 m
176.553 m
176.438 m
176.312 m
176.281 m
176.339 m
176.344 m
176.313 m
176.357 m
176.398 m
176.477 m
176.469 m
176.494 m
176.501 m
176.478 m
176.439 m
176.418 m
176.459 m
176.494 m
176.459 m
176.389 m
176.516 m
176.638 m
176.750 m
176.848 m
176.820 m
176.780 m
176.685 m
176.605 m
176.580 m
176.536 m
176.501 m
176.509 m
176.579 m
176.654 m
176.675 m
176.755 m
176.760 m
176.720 m
176.641 m
176.570 m
176.517 m
176.484 m
176.468 m
176.409 m
176.434 m
176.520 m
176.576 m
176.570 m
176.585 m
176.512 m
176.382 m
176.399 m
176.374 m
176.316 m
176.336 m
176.290 m
176.398 m
176.577 m
176.695 m
176.785 m
176.782 m
176.763 m
176.732 m
176.730 m
176.676 m
176.722 m
176.756 m
176.836 m
176.893 m
177.004 m
177.063 m
177.146 m
177.133 m
177.085 m
176.959 m
176.825 m
176.732 m
176.675 m
176.654 m
176.707 m
176.834 m
176.860 m
176.852 m
176.845 m
176.740 m
176.655 m
176.507 m
176.359 m
176.296 m
176.199 m
176.205 m
176.223 m
176.204 m
176.212 m
176.284 m
176.347 m
176.341 m
176.203 m
176.096 m
176.014 m
175.927 m
175.890 m
175.792 m
175.854 m
175.891 m
175.947 m
176.040 m
176.101 m
176.092 m
176.047 m
175.948 m
175.834 m
175.788 m
175.736 m
175.726 m
175.772 m
175.786 m
175.880 m
176.004 m
176.023 m
175.989 m
175.964 m
175.963 m
175.970 m
175.974 m
175.931 m
175.899 m
175.948 m
176.007 m
176.149 m
176.240 m
176.291 m
176.282 m
176.190 m
176.096 m
175.985 m
175.857 m
175.826 m
175.736 m
175.678 m
175.774 m
175.881 m
175.973 m
176.004 m
176.002 m
175.904 m
175.839 m
175.844 m
175.851 m
175.871 m
175.786 m
175.856 m
175.954 m
176.067 m
176.262 m
176.333 m
176.295 m
176.227 m
176.109 m
176.066 m
176.039 m
176.066 m
176.029 m
176.040 m
176.139 m
176.146 m
176.159 m
176.169 m
176.136 m
176.066 m
175.997 m
175.858 m
175.830 m
175.841 m
175.920 m
175.919 m
175.983 m
176.041 m
176.111 m
176.113 m
176.110 m
176.017 m
175.973 m
175.924 m
175.929 m
175.975 m
175.920 m
175.870 m
175.997 m
176.020 m
176.042 m
176.032 m
175.983 m
175.915 m
175.833 m
175.744 m
175.639 m
175.649 m
175.737 m
175.731 m
175.885 m
176.016 m
176.116 m
176.211 m
176.211 m
176.151 m
176.071 m
175.973 m
175.914 m
175.983 m
175.993 m
176.046 m
176.183 m
176.290 m
176.376 m
176.407 m
176.392 m
176.334 m
176.223 m
176.214 m
176.146 m
176.154 m
176.132 m
176.028 m
176.069 m
176.090 m
176.162 m
176.226 m
176.216 m
176.143 m
176.062 m
175.905 m
175.895 m
175.787 m
175.756 m
175.756 m
175.872 m
176.081 m
176.176 m
176.237 m
176.232 m
176.123 m
176.081 m
176.019 m
176.014 m
175.965 m
175.953 m
175.952 m
176.030 m
176.022 m
176.041 m
176.013 m
175.953 m
175.847 m
175.740 m
175.652 m
175.585 m
175.544 m
175.498 m
175.614 m
175.716 m
175.902 m
176.032 m
176.077 m
176.076 m
176.040 m
175.967 m
175.977 m
175.936 m
175.921 m
175.937 m
175.921 m
176.029 m
176.235 m
176.341 m
176.446 m
176.455 m
176.484 m
176.509 m
176.487 m
176.500 m
176.517 m
176.496 m
176.444 m
176.472 m
176.529 m
176.644 m
176.694 m
176.690 m
176.664 m
176.525 m
176.458 m
176.457 m
176.516 m
176.523 m
176.553 m
176.726 m
176.774 m
176.800 m
176.798 m
176.769 m
176.721 m
176.630 m
176.543 m
176.456 m
176.423 m
176.435 m
176.516 m
176.621 m
176.761 m
176.830 m
176.954 m
176.945 m
176.883 m
176.788 m
176.796 m
176.742 m
176.704 m
176.694 m
176.752 m
176.762 m
176.863 m
176.936 m
176.942 m
176.901 m
176.884 m
176.861 m
176.819 m
176.772 m
176.785 m
176.777 m
176.813 m
176.922 m
177.116 m
177.266 m
177.331 m
177.283 m
177.205 m
177.205 m
177.190 m
177.148 m
177.198 m
177.209 m
177.164 m
177.255 m
177.331 m
177.386 m
177.414 m
177.387 m
177.297 m
177.184 m
177.135 m
177.090 m
177.020 m
176.958 m
176.914 m
176.901 m
176.904 m
176.875 m
176.968 m
176.967 m
176.909 m
176.845 m
176.728 m
176.631 m
176.581 m
176.516 m
176.506 m
176.616 m
176.705 m
176.777 m
176.781 m
176.764 m
176.692 m
176.562 m
176.487 m
176.389 m
176.398 m
176.374 m
176.422 m
176.515 m
176.660 m
176.666 m
176.681 m
176.700 m
176.614 m
176.551 m
176.472 m
176.398 m
176.379 m
176.371 m
176.367 m
176.434 m
176.551 m
176.630 m
176.709 m
176.679 m
176.553 m
176.406 m
176.293 m
176.195 m
176.189 m
176.106 m
176.111 m
176.259 m
176.363 m
176.388 m
176.459 m
176.434 m
176.328 m
176.236 m
176.131 m
176.006 m
176.019 m
176.014 m
176.054 m
176.306 m
176.505 m
176.573 m
176.634 m
176.588 m
176.516 m
no value

4 October in the last 10 years

DayLevel
176.233 m
176.515 m
176.503 m
176.618 m
176.852 m
177.225 m
177.294 m
176.986 m
176.822 m
176.63 m

Year by year

YearDays with a valueDays below the normal range
to 2740
3641
3660
3650
3650
3650
3590
3650
3650
3650
3660
3650
3656
365245
366219
36592
36527
3650
366137
365225
36585
36552
36647
356303
35615
365267
363199
3607
3650
3650
3660
3650
3650
3650
3660
3650
3650
3650
3660
3650
3650
3650
3660
3650
3630
2650
1750
2920
3400
3430
3650
3650
2140
3590
3510
3650

Records

  • Highest daily average in our series since 1 January 1970: 177.592 m on 6 October 1986.
  • Lowest daily average in our series since 1 January 1970: 175.32 m on 19 February 2013.

See also