World Water LevelsWater, in perspective
Menu

Nottawasaga River water level at Alliston today

Is the Nottawasaga River at Alliston within its normal range for the date?

The Nottawasaga River at Alliston read 6.729 m at .

Level now

within the normal range for the date

6.729 m

Provisional

within the normal range for the date

6.729 mNormal for the date6.70 m to 6.94 mMedian 6.79 m
The normal range for 26 October is 6.70 m to 6.94 m: the 10th to 90th percentile of the daily averages from 19 October to 2 November in 23 years between 2002 and 2025.
Table: where the water stands
LevelValue
Newest reading6.729 m,
Normal range for the date6.70 m to 6.94 m
Median for the date6.79 m
Past day
+0.001 m
Past week
-0.004 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 Nottawasaga River at Alliston averaged 6.728 m.

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

The last 90 days, against the normal range for each day 6.6 m 6.7 m 6.8 m 6.9 m Lowest 6.597 m 6.728 m
  • Level
  • Normal range for the date
  • Median for the date
  • A year earlier
  • Our record
Daily averages of the Nottawasaga River at Alliston 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 value6.663 m to 6.879 m6.719 m6.845 m
no value6.663 m to 6.876 m6.718 m6.748 m
no value6.664 m to 6.879 m6.718 m6.710 m
no value6.664 m to 6.875 m6.718 m6.697 m
no value6.664 m to 6.868 m6.717 m6.689 m
no value6.663 m to 6.866 m6.717 m6.680 m
no value6.662 m to 6.866 m6.717 m6.682 m
no value6.660 m to 6.867 m6.720 m6.679 m
no value6.651 m to 6.867 m6.717 m6.671 m
no value6.651 m to 6.866 m6.717 m6.666 m
no value6.648 m to 6.858 m6.717 m6.670 m
no value6.648 m to 6.859 m6.717 m6.664 m
no value6.647 m to 6.856 m6.717 m6.663 m
no value6.647 m to 6.850 m6.719 m6.662 m
no value6.645 m to 6.843 m6.718 m6.659 m
no value6.645 m to 6.843 m6.716 m6.661 m
no value6.645 m to 6.843 m6.717 m6.661 m
no value6.645 m to 6.843 m6.717 m6.652 m
no value6.643 m to 6.845 m6.717 m6.654 m
no value6.645 m to 6.845 m6.717 m6.652 m
no value6.645 m to 6.845 m6.716 m6.687 m
no value6.647 m to 6.845 m6.714 m6.688 m
no value6.647 m to 6.841 m6.714 m6.713 m
no value6.649 m to 6.832 m6.713 m6.910 m
no value6.650 m to 6.826 m6.713 m6.792 m
no value6.651 m to 6.824 m6.713 m6.741 m
no value6.651 m to 6.824 m6.712 m6.717 m
no value6.654 m to 6.826 m6.712 m6.714 m
no value6.654 m to 6.824 m6.707 m6.701 m
no value6.655 m to 6.819 m6.704 m6.696 m
no value6.659 m to 6.820 m6.704 m6.693 m
no value6.659 m to 6.812 m6.704 m6.698 m
no value6.658 m to 6.810 m6.704 m6.713 m
no value6.658 m to 6.808 m6.703 m6.698 m
no value6.658 m to 6.808 m6.701 m6.690 m
no value6.658 m to 6.808 m6.702 m6.683 m
no value6.658 m to 6.808 m6.703 m6.682 m
no value6.658 m to 6.805 m6.703 m6.683 m
no value6.658 m to 6.808 m6.701 m6.710 m
no value6.657 m to 6.809 m6.700 m6.704 m
no value6.657 m to 6.810 m6.699 m6.691 m
no value6.657 m to 6.811 m6.698 m6.687 m
no value6.654 m to 6.811 m6.697 m6.683 m
no value6.654 m to 6.812 m6.698 m6.680 m
6.782 m6.654 m to 6.816 m6.698 m6.674 m
6.762 m6.654 m to 6.813 m6.699 m6.688 m
6.751 m6.656 m to 6.813 m6.699 m6.671 m
6.746 m6.657 m to 6.814 m6.699 m6.678 m
6.734 m6.659 m to 6.816 m6.706 m6.676 m
6.735 m6.659 m to 6.819 m6.710 m6.674 m
6.737 m6.659 m to 6.821 m6.711 m6.672 m
6.735 m6.659 m to 6.821 m6.712 m6.669 m
6.732 m6.659 m to 6.820 m6.714 m6.669 m
6.728 m6.660 m to 6.816 m6.716 m6.668 m
6.728 m6.661 m to 6.813 m6.719 m6.664 m
6.724 m6.662 m to 6.813 m6.723 m6.667 m
6.722 m6.662 m to 6.811 m6.726 m6.715 m
6.722 m6.663 m to 6.811 m6.728 m6.728 m
6.719 m6.663 m to 6.811 m6.730 m6.804 m
6.718 m6.664 m to 6.811 m6.733 m6.759 m
6.718 m6.664 m to 6.815 m6.734 m6.741 m
6.718 m6.665 m to 6.817 m6.735 m6.719 m
6.715 m6.667 m to 6.823 m6.737 m6.705 m
6.715 m6.669 m to 6.827 m6.741 m6.697 m
6.716 m6.669 m to 6.823 m6.741 m6.691 m
6.720 m6.665 m to 6.822 m6.736 m6.688 m
6.775 m6.668 m to 6.825 m6.736 m6.687 m
6.759 m6.669 m to 6.829 m6.734 m6.685 m
6.741 m6.669 m to 6.832 m6.733 m6.684 m
6.732 m6.669 m to 6.835 m6.734 m6.682 m
6.727 m6.670 m to 6.839 m6.733 m6.678 m
6.725 m6.671 m to 6.842 m6.734 m6.689 m
6.730 m6.672 m to 6.849 m6.734 m6.697 m
6.730 m6.672 m to 6.858 m6.736 m6.691 m
6.735 m6.672 m to 6.862 m6.737 m6.690 m
6.725 m6.672 m to 6.862 m6.740 m6.693 m
6.725 m6.673 m to 6.862 m6.741 m6.697 m
6.727 m6.674 m to 6.862 m6.741 m6.697 m
6.736 m6.676 m to 6.863 m6.742 m6.696 m
6.728 m6.678 m to 6.863 m6.744 m6.696 m
6.747 m6.683 m to 6.863 m6.750 m6.694 m
6.754 m6.685 m to 6.873 m6.754 m6.695 m
6.742 m6.688 m to 6.879 m6.760 m6.724 m
6.733 m6.689 m to 6.881 m6.767 m6.755 m
6.730 m6.691 m to 6.893 m6.770 m6.778 m
6.727 m6.691 m to 6.906 m6.773 m6.745 m
6.734 m6.692 m to 6.915 m6.779 m6.736 m
6.731 m6.694 m to 6.906 m6.783 m6.737 m
6.728 m6.695 m to 6.925 m6.784 m6.733 m
6.728 m6.697 m to 6.944 m6.786 m6.725 m

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

The last 12 months, against the normal range for each day 7.0 m 7.5 m Lowest 6.597 m 6.728 m
  • Level
  • Below the normal range
  • Above the normal range
  • Normal range for the date
  • Median for the date
  • Our record
Daily averages of the Nottawasaga River at Alliston 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
6.725 m6.697 m to 6.944 m6.786 m
6.720 m6.699 m to 6.940 m6.790 m
6.718 m6.702 m to 6.952 m6.793 m
6.717 m6.702 m to 6.956 m6.794 m
6.717 m6.703 m to 6.962 m6.797 m
6.720 m6.704 m to 6.968 m6.798 m
6.805 m6.705 m to 6.972 m6.799 m
6.775 m6.705 m to 6.972 m6.799 m
6.749 m6.705 m to 6.969 m6.800 m
6.739 m6.706 m to 6.959 m6.799 m
6.754 m6.706 m to 6.951 m6.799 m
6.743 m6.707 m to 6.946 m6.797 m
6.739 m6.707 m to 6.944 m6.796 m
6.742 m6.707 m to 6.943 m6.795 m
6.755 m6.707 m to 6.930 m6.797 m
6.747 m6.707 m to 6.923 m6.799 m
6.745 m6.707 m to 6.929 m6.799 m
6.751 m6.708 m to 6.930 m6.799 m
6.754 m6.709 m to 6.930 m6.800 m
6.814 m6.711 m to 6.927 m6.800 m
6.820 m6.712 m to 6.926 m6.800 m
6.799 m6.712 m to 6.927 m6.803 m
6.804 m6.713 m to 6.927 m6.805 m
6.793 m6.714 m to 6.927 m6.806 m
6.771 m6.718 m to 6.927 m6.808 m
6.750 m6.721 m to 6.942 m6.809 m
6.742 m6.722 m to 6.947 m6.811 m
6.743 m6.725 m to 6.956 m6.813 m
6.742 m6.727 m to 6.977 m6.814 m
6.742 m6.730 m to 6.990 m6.817 m
6.739 m6.732 m to 6.992 m6.819 m
6.743 m6.733 m to 6.994 m6.822 m
6.790 m6.736 m to 6.998 m6.831 m
6.783 m6.738 m to 7.018 m6.839 m
6.776 m6.741 m to 7.015 m6.843 m
6.760 m6.742 m to 7.018 m6.845 m
6.762 m6.743 m to 7.021 m6.846 m
6.755 m6.744 m to 7.023 m6.848 m
6.755 m6.746 m to 7.023 m6.852 m
6.812 m6.749 m to 7.023 m6.854 m
6.760 m6.750 m to 7.026 m6.855 m
6.790 m6.750 m to 7.030 m6.857 m
6.861 m6.750 m to 7.040 m6.857 m
6.802 m6.751 m to 7.032 m6.857 m
6.752 m6.752 m to 7.030 m6.857 m
6.793 m6.752 m to 7.019 m6.857 m
6.829 m6.752 m to 7.019 m6.860 m
6.820 m6.752 m to 7.011 m6.861 m
6.798 m6.753 m to 7.006 m6.863 m
6.841 m6.754 m to 7.004 m6.864 m
6.801 m6.754 m to 7.005 m6.867 m
6.830 m6.753 m to 7.006 m6.869 m
6.842 m6.755 m to 7.020 m6.873 m
6.842 m6.761 m to 7.050 m6.878 m
6.839 m6.769 m to 7.063 m6.882 m
6.899 m6.776 m to 7.080 m6.886 m
6.929 m6.778 m to 7.087 m6.888 m
6.905 m6.779 m to 7.068 m6.892 m
6.874 m6.789 m to 7.079 m6.893 m
6.882 m6.791 m to 7.087 m6.896 m
6.879 m6.793 m to 7.101 m6.904 m
6.860 m6.795 m to 7.109 m6.911 m
6.791 m6.798 m to 7.131 m6.912 m
6.859 m6.802 m to 7.160 m6.914 m
6.895 m6.803 m to 7.165 m6.917 m
7.244 m6.808 m to 7.170 m6.923 m
7.175 m6.811 m to 7.162 m6.924 m
7.114 m6.811 m to 7.160 m6.928 m
no value6.811 m to 7.157 m6.934 m
no value6.811 m to 7.133 m6.936 m
no value6.813 m to 7.132 m6.937 m
no value6.813 m to 7.132 m6.939 m
no value6.813 m to 7.133 m6.930 m
no value6.812 m to 7.178 m6.932 m
no value6.810 m to 7.206 m6.929 m
no value6.808 m to 7.206 m6.928 m
no value6.807 m to 7.206 m6.929 m
no value6.807 m to 7.206 m6.929 m
no value6.807 m to 7.206 m6.929 m
no value6.807 m to 7.183 m6.930 m
no value6.807 m to 7.209 m6.930 m
no value6.807 m to 7.225 m6.929 m
no value6.806 m to 7.247 m6.933 m
no value6.806 m to 7.247 m6.931 m
no value6.808 m to 7.247 m6.933 m
no value6.810 m to 7.247 m6.936 m
no value6.810 m to 7.240 m6.936 m
no value6.810 m to 7.173 m6.936 m
no value6.810 m to 7.144 m6.934 m
no value6.812 m to 7.128 m6.933 m
no value6.816 m to 7.128 m6.930 m
no value6.821 m to 7.128 m6.932 m
no value6.823 m to 7.142 m6.933 m
no value6.831 m to 7.150 m6.935 m
no value6.836 m to 7.151 m6.935 m
no value6.837 m to 7.155 m6.937 m
no value6.839 m to 7.158 m6.938 m
no value6.841 m to 7.159 m6.942 m
no value6.842 m to 7.159 m6.945 m
no value6.842 m to 7.168 m6.947 m
no value6.842 m to 7.187 m6.950 m
no value6.845 m to 7.196 m6.955 m
no value6.846 m to 7.203 m6.957 m
no value6.846 m to 7.203 m6.964 m
no value6.846 m to 7.208 m6.966 m
no value6.846 m to 7.207 m6.968 m
no value6.845 m to 7.221 m6.974 m
no value6.845 m to 7.217 m6.975 m
no value6.845 m to 7.231 m6.984 m
no value6.842 m to 7.251 m6.984 m
no value6.843 m to 7.266 m6.988 m
no value6.842 m to 7.273 m6.991 m
no value6.844 m to 7.301 m6.994 m
no value6.845 m to 7.319 m7.003 m
no value6.846 m to 7.327 m7.009 m
no value6.846 m to 7.367 m7.011 m
no value6.845 m to 7.379 m7.013 m
no value6.845 m to 7.383 m7.017 m
no value6.845 m to 7.378 m7.025 m
no value6.845 m to 7.374 m7.042 m
no value6.845 m to 7.373 m7.050 m
no value6.846 m to 7.372 m7.056 m
no value6.846 m to 7.339 m7.058 m
no value6.847 m to 7.328 m7.059 m
no value6.848 m to 7.326 m7.059 m
no value6.848 m to 7.328 m7.061 m
no value6.848 m to 7.339 m7.061 m
no value6.850 m to 7.385 m7.059 m
no value6.860 m to 7.390 m7.065 m
no value6.873 m to 7.406 m7.068 m
no value6.873 m to 7.410 m7.081 m
no value6.877 m to 7.446 m7.086 m
no value6.877 m to 7.505 m7.097 m
no value6.877 m to 7.569 m7.101 m
no value6.881 m to 7.609 m7.113 m
no value6.877 m to 7.628 m7.117 m
no value6.880 m to 7.670 m7.127 m
no value6.880 m to 7.748 m7.133 m
no value6.877 m to 7.776 m7.143 m
no value6.873 m to 7.763 m7.146 m
no value6.868 m to 7.749 m7.152 m
no value6.868 m to 7.741 m7.150 m
no value6.868 m to 7.703 m7.144 m
no value6.864 m to 7.670 m7.135 m
no value6.858 m to 7.664 m7.126 m
no value6.858 m to 7.585 m7.104 m
no value6.858 m to 7.550 m7.091 m
no value6.862 m to 7.514 m7.069 m
no value6.864 m to 7.487 m7.062 m
no value6.864 m to 7.500 m7.054 m
no value6.865 m to 7.507 m7.042 m
no value6.864 m to 7.500 m7.039 m
no value6.864 m to 7.500 m7.033 m
no value6.864 m to 7.500 m7.032 m
no value6.864 m to 7.520 m7.040 m
no value6.865 m to 7.555 m7.054 m
no value6.869 m to 7.573 m7.061 m
no value6.869 m to 7.606 m7.062 m
no value6.872 m to 7.643 m7.063 m
no value6.872 m to 7.653 m7.066 m
no value6.876 m to 7.685 m7.072 m
no value6.874 m to 7.693 m7.081 m
no value6.876 m to 7.714 m7.089 m
no value6.874 m to 7.724 m7.082 m
no value6.876 m to 7.737 m7.075 m
no value6.876 m to 7.717 m7.072 m
no value6.870 m to 7.693 m7.063 m
no value6.862 m to 7.665 m7.057 m
no value6.853 m to 7.625 m7.046 m
no value6.844 m to 7.606 m7.036 m
no value6.843 m to 7.601 m7.018 m
no value6.840 m to 7.547 m7.010 m
no value6.839 m to 7.487 m7.001 m
no value6.836 m to 7.446 m6.999 m
no value6.839 m to 7.418 m6.988 m
no value6.836 m to 7.398 m6.982 m
no value6.833 m to 7.386 m6.980 m
no value6.825 m to 7.368 m6.971 m
no value6.823 m to 7.350 m6.966 m
no value6.819 m to 7.317 m6.959 m
no value6.816 m to 7.302 m6.952 m
no value6.816 m to 7.302 m6.947 m
no value6.816 m to 7.305 m6.946 m
no value6.816 m to 7.302 m6.944 m
no value6.818 m to 7.301 m6.947 m
no value6.819 m to 7.301 m6.941 m
no value6.820 m to 7.293 m6.936 m
no value6.820 m to 7.283 m6.933 m
no value6.817 m to 7.283 m6.927 m
no value6.814 m to 7.271 m6.925 m
no value6.812 m to 7.263 m6.925 m
no value6.810 m to 7.233 m6.922 m
no value6.809 m to 7.213 m6.922 m
no value6.806 m to 7.189 m6.919 m
no value6.802 m to 7.174 m6.912 m
no value6.798 m to 7.189 m6.910 m
no value6.794 m to 7.179 m6.909 m
no value6.786 m to 7.174 m6.902 m
no value6.783 m to 7.171 m6.895 m
no value6.779 m to 7.133 m6.885 m
no value6.776 m to 7.110 m6.877 m
no value6.773 m to 7.091 m6.872 m
no value6.771 m to 7.091 m6.867 m
no value6.764 m to 7.091 m6.867 m
no value6.762 m to 7.086 m6.865 m
no value6.757 m to 7.084 m6.861 m
no value6.751 m to 7.084 m6.859 m
no value6.748 m to 7.086 m6.856 m
no value6.746 m to 7.090 m6.852 m
no value6.745 m to 7.091 m6.848 m
no value6.741 m to 7.086 m6.845 m
no value6.735 m to 7.069 m6.841 m
no value6.732 m to 7.047 m6.838 m
no value6.731 m to 7.047 m6.835 m
no value6.730 m to 7.039 m6.832 m
no value6.726 m to 7.036 m6.829 m
no value6.726 m to 7.036 m6.829 m
no value6.723 m to 7.036 m6.828 m
no value6.723 m to 7.030 m6.827 m
no value6.723 m to 7.013 m6.826 m
no value6.722 m to 7.012 m6.823 m
no value6.721 m to 7.006 m6.819 m
no value6.719 m to 6.995 m6.814 m
no value6.716 m to 6.976 m6.814 m
no value6.713 m to 6.964 m6.812 m
no value6.713 m to 6.951 m6.810 m
no value6.712 m to 6.946 m6.806 m
no value6.711 m to 6.942 m6.804 m
no value6.710 m to 6.937 m6.802 m
no value6.706 m to 6.932 m6.802 m
no value6.705 m to 6.931 m6.798 m
no value6.701 m to 6.926 m6.788 m
no value6.700 m to 6.923 m6.783 m
no value6.697 m to 6.917 m6.779 m
no value6.694 m to 6.921 m6.774 m
no value6.690 m to 6.921 m6.771 m
no value6.687 m to 6.925 m6.766 m
no value6.686 m to 6.916 m6.764 m
no value6.682 m to 6.908 m6.759 m
no value6.682 m to 6.907 m6.756 m
no value6.680 m to 6.907 m6.756 m
no value6.679 m to 6.906 m6.754 m
no value6.678 m to 6.906 m6.752 m
no value6.677 m to 6.910 m6.748 m
no value6.674 m to 6.909 m6.747 m
no value6.670 m to 6.906 m6.742 m
no value6.668 m to 6.901 m6.740 m
no value6.665 m to 6.899 m6.738 m
no value6.663 m to 6.898 m6.734 m
no value6.663 m to 6.903 m6.731 m
no value6.662 m to 6.916 m6.730 m
no value6.659 m to 6.908 m6.728 m
no value6.659 m to 6.918 m6.726 m
no value6.658 m to 6.920 m6.723 m
no value6.657 m to 6.920 m6.721 m
no value6.657 m to 6.918 m6.721 m
no value6.657 m to 6.918 m6.721 m
no value6.658 m to 6.917 m6.720 m
no value6.658 m to 6.917 m6.720 m
no value6.658 m to 6.905 m6.721 m
no value6.659 m to 6.905 m6.722 m
no value6.659 m to 6.905 m6.725 m
no value6.659 m to 6.916 m6.730 m
no value6.658 m to 6.909 m6.734 m
no value6.656 m to 6.904 m6.736 m
no value6.653 m to 6.885 m6.735 m
no value6.652 m to 6.880 m6.734 m
no value6.656 m to 6.873 m6.732 m
no value6.659 m to 6.872 m6.729 m
no value6.660 m to 6.855 m6.727 m
no value6.663 m to 6.872 m6.727 m
no value6.663 m to 6.872 m6.723 m
no value6.661 m to 6.850 m6.722 m
no value6.661 m to 6.847 m6.721 m
no value6.661 m to 6.867 m6.720 m
no value6.663 m to 6.876 m6.720 m
no value6.663 m to 6.879 m6.719 m
no value6.663 m to 6.876 m6.718 m
no value6.664 m to 6.879 m6.718 m
no value6.664 m to 6.875 m6.718 m
no value6.664 m to 6.868 m6.717 m
no value6.663 m to 6.866 m6.717 m
no value6.662 m to 6.866 m6.717 m
no value6.660 m to 6.867 m6.720 m
no value6.651 m to 6.867 m6.717 m
no value6.651 m to 6.866 m6.717 m
no value6.648 m to 6.858 m6.717 m
no value6.648 m to 6.859 m6.717 m
no value6.647 m to 6.856 m6.717 m
no value6.647 m to 6.850 m6.719 m
no value6.645 m to 6.843 m6.718 m
no value6.645 m to 6.843 m6.716 m
no value6.645 m to 6.843 m6.717 m
no value6.645 m to 6.843 m6.717 m
no value6.643 m to 6.845 m6.717 m
no value6.645 m to 6.845 m6.717 m
no value6.645 m to 6.845 m6.716 m
no value6.647 m to 6.845 m6.714 m
no value6.647 m to 6.841 m6.714 m
no value6.649 m to 6.832 m6.713 m
no value6.650 m to 6.826 m6.713 m
no value6.651 m to 6.824 m6.713 m
no value6.651 m to 6.824 m6.712 m
no value6.654 m to 6.826 m6.712 m
no value6.654 m to 6.824 m6.707 m
no value6.655 m to 6.819 m6.704 m
no value6.659 m to 6.820 m6.704 m
no value6.659 m to 6.812 m6.704 m
no value6.658 m to 6.810 m6.704 m
no value6.658 m to 6.808 m6.703 m
no value6.658 m to 6.808 m6.701 m
no value6.658 m to 6.808 m6.702 m
no value6.658 m to 6.808 m6.703 m
no value6.658 m to 6.805 m6.703 m
no value6.658 m to 6.808 m6.701 m
no value6.657 m to 6.809 m6.700 m
no value6.657 m to 6.810 m6.699 m
no value6.657 m to 6.811 m6.698 m
no value6.654 m to 6.811 m6.697 m
no value6.654 m to 6.812 m6.698 m
6.782 m6.654 m to 6.816 m6.698 m
6.762 m6.654 m to 6.813 m6.699 m
6.751 m6.656 m to 6.813 m6.699 m
6.746 m6.657 m to 6.814 m6.699 m
6.734 m6.659 m to 6.816 m6.706 m
6.735 m6.659 m to 6.819 m6.710 m
6.737 m6.659 m to 6.821 m6.711 m
6.735 m6.659 m to 6.821 m6.712 m
6.732 m6.659 m to 6.820 m6.714 m
6.728 m6.660 m to 6.816 m6.716 m
6.728 m6.661 m to 6.813 m6.719 m
6.724 m6.662 m to 6.813 m6.723 m
6.722 m6.662 m to 6.811 m6.726 m
6.722 m6.663 m to 6.811 m6.728 m
6.719 m6.663 m to 6.811 m6.730 m
6.718 m6.664 m to 6.811 m6.733 m
6.718 m6.664 m to 6.815 m6.734 m
6.718 m6.665 m to 6.817 m6.735 m
6.715 m6.667 m to 6.823 m6.737 m
6.715 m6.669 m to 6.827 m6.741 m
6.716 m6.669 m to 6.823 m6.741 m
6.720 m6.665 m to 6.822 m6.736 m
6.775 m6.668 m to 6.825 m6.736 m
6.759 m6.669 m to 6.829 m6.734 m
6.741 m6.669 m to 6.832 m6.733 m
6.732 m6.669 m to 6.835 m6.734 m
6.727 m6.670 m to 6.839 m6.733 m
6.725 m6.671 m to 6.842 m6.734 m
6.730 m6.672 m to 6.849 m6.734 m
6.730 m6.672 m to 6.858 m6.736 m
6.735 m6.672 m to 6.862 m6.737 m
6.725 m6.672 m to 6.862 m6.740 m
6.725 m6.673 m to 6.862 m6.741 m
6.727 m6.674 m to 6.862 m6.741 m
6.736 m6.676 m to 6.863 m6.742 m
6.728 m6.678 m to 6.863 m6.744 m
6.747 m6.683 m to 6.863 m6.750 m
6.754 m6.685 m to 6.873 m6.754 m
6.742 m6.688 m to 6.879 m6.760 m
6.733 m6.689 m to 6.881 m6.767 m
6.730 m6.691 m to 6.893 m6.770 m
6.727 m6.691 m to 6.906 m6.773 m
6.734 m6.692 m to 6.915 m6.779 m
6.731 m6.694 m to 6.906 m6.783 m
6.728 m6.695 m to 6.925 m6.784 m
6.728 m6.697 m to 6.944 m6.786 m

The last 10 years, weekly averages

The last 10 years, weekly averages 7.0 m 7.5 m 8.0 m Lowest 6.597 m 6.730 m
  • Level
  • Our record
Weekly averages of the Nottawasaga River at Alliston from the week of 24 October 2016 to 25 October 2026.
Table: The last 10 years, weekly averages
Week startingWeekly average (m)
6.718 m
6.746 m
6.718 m
6.711 m
6.734 m
6.783 m
6.777 m
6.800 m
6.839 m
6.995 m
7.006 m
7.145 m
7.000 m
7.007 m
6.860 m
6.861 m
6.853 m
7.354 m
7.173 m
6.921 m
6.814 m
6.819 m
6.990 m
7.437 m
7.172 m
7.026 m
6.910 m
7.443 m
7.025 m
6.860 m
7.076 m
6.873 m
6.849 m
6.820 m
7.419 m
7.244 m
6.913 m
7.006 m
7.058 m
6.915 m
6.967 m
6.852 m
6.829 m
6.817 m
6.813 m
6.863 m
6.809 m
6.807 m
6.799 m
6.807 m
6.884 m
6.907 m
6.852 m
6.930 m
6.898 m
6.933 m
6.956 m
6.867 m
6.869 m
6.934 m
6.939 m
6.928 m
6.963 m
7.335 m
7.423 m
7.751 m
7.197 m
7.142 m
7.242 m
7.922 m
7.095 m
6.923 m
6.891 m
6.857 m
6.951 m
7.124 m
7.140 m
7.343 m
7.748 m
7.164 m
6.979 m
7.065 m
6.957 m
6.861 m
6.853 m
6.810 m
6.812 m
6.828 m
6.933 m
6.790 m
6.797 m
6.854 m
6.773 m
6.778 m
6.898 m
7.110 m
6.821 m
6.777 m
6.788 m
6.765 m
6.767 m
6.849 m
6.812 m
6.798 m
6.816 m
7.071 m
6.967 m
6.878 m
6.868 m
7.003 m
7.011 m
6.872 m
6.985 m
6.963 m
6.973 m
6.943 m
6.867 m
no value
no value
no value
no value
7.137 m
7.216 m
7.098 m
7.753 m
7.519 m
7.204 m
7.153 m
7.255 m
7.424 m
7.360 m
7.198 m
7.084 m
7.171 m
6.992 m
7.052 m
6.949 m
6.922 m
6.891 m
6.863 m
6.818 m
6.792 m
6.789 m
6.775 m
6.760 m
6.757 m
6.750 m
6.764 m
6.749 m
6.756 m
6.825 m
6.787 m
6.771 m
6.788 m
6.774 m
6.801 m
6.819 m
7.023 m
6.869 m
6.864 m
6.894 m
6.915 m
6.875 m
6.968 m
6.876 m
6.889 m
6.986 m
7.189 m
7.243 m
7.012 m
6.947 m
6.859 m
6.891 m
6.861 m
6.853 m
6.889 m
7.434 m
7.120 m
7.037 m
7.141 m
6.966 m
6.914 m
6.863 m
6.875 m
6.820 m
6.851 m
6.908 m
6.871 m
6.806 m
6.825 m
6.744 m
6.749 m
6.715 m
6.778 m
6.756 m
6.742 m
6.740 m
7.122 m
6.733 m
6.726 m
6.733 m
6.736 m
6.761 m
6.748 m
6.720 m
6.749 m
6.754 m
6.773 m
6.888 m
6.821 m
6.816 m
6.786 m
6.848 m
6.903 m
6.890 m
6.911 m
6.990 m
6.844 m
6.884 m
6.853 m
6.824 m
6.818 m
6.816 m
6.842 m
6.849 m
6.916 m
6.956 m
6.943 m
7.237 m
6.901 m
7.120 m
6.929 m
6.814 m
6.903 m
6.801 m
6.843 m
6.895 m
6.767 m
6.733 m
6.728 m
6.714 m
6.707 m
6.686 m
6.703 m
6.701 m
6.726 m
6.718 m
6.689 m
6.704 m
6.688 m
6.680 m
6.672 m
6.678 m
6.677 m
6.708 m
6.699 m
6.880 m
6.737 m
6.777 m
6.752 m
6.738 m
6.944 m
6.798 m
6.764 m
6.795 m
6.803 m
6.805 m
7.032 m
6.915 m
6.828 m
6.832 m
6.803 m
6.783 m
6.868 m
6.903 m
6.959 m
6.990 m
7.383 m
7.535 m
7.248 m
7.485 m
7.306 m
7.215 m
6.928 m
6.921 m
6.873 m
6.875 m
6.848 m
6.870 m
6.760 m
6.781 m
6.764 m
6.719 m
6.831 m
6.749 m
6.694 m
6.683 m
6.686 m
6.676 m
6.689 m
6.691 m
6.682 m
6.670 m
6.667 m
6.717 m
6.674 m
6.660 m
6.673 m
6.677 m
6.701 m
6.672 m
6.688 m
6.690 m
6.685 m
6.693 m
6.688 m
6.700 m
6.708 m
6.753 m
6.712 m
6.733 m
6.737 m
6.870 m
6.922 m
6.766 m
6.751 m
6.738 m
6.826 m
7.067 m
7.003 m
6.949 m
6.829 m
6.763 m
6.858 m
7.167 m
7.305 m
7.411 m
6.950 m
6.940 m
6.916 m
7.024 m
6.911 m
6.780 m
6.747 m
6.699 m
6.691 m
6.800 m
6.696 m
6.766 m
6.697 m
6.919 m
6.805 m
6.741 m
6.746 m
6.732 m
6.700 m
6.754 m
6.706 m
6.685 m
6.695 m
6.689 m
6.672 m
6.684 m
6.694 m
6.699 m
6.715 m
6.708 m
6.804 m
6.737 m
6.743 m
6.742 m
6.778 m
6.780 m
6.758 m
6.918 m
6.781 m
6.855 m
6.839 m
6.973 m
6.909 m
6.896 m
6.842 m
6.825 m
6.995 m
6.948 m
6.994 m
6.853 m
6.872 m
7.057 m
7.161 m
7.086 m
6.861 m
7.034 m
6.865 m
6.825 m
6.891 m
6.926 m
6.750 m
6.727 m
6.832 m
6.800 m
6.724 m
7.008 m
6.876 m
6.751 m
6.796 m
6.782 m
6.739 m
6.805 m
6.705 m
6.692 m
6.694 m
6.680 m
6.738 m
6.715 m
6.705 m
6.708 m
6.703 m
6.720 m
6.716 m
6.741 m
6.768 m
6.749 m
6.736 m
6.790 m
6.848 m
6.812 m
7.039 m
6.824 m
6.809 m
6.826 m
6.883 m
6.938 m
6.993 m
7.069 m
7.091 m
7.202 m
7.331 m
7.452 m
7.037 m
7.643 m
6.996 m
6.928 m
6.869 m
6.917 m
6.822 m
6.807 m
6.966 m
6.861 m
6.846 m
6.755 m
6.725 m
6.734 m
6.753 m
6.741 m
6.693 m
6.720 m
6.722 m
6.668 m
6.661 m
6.754 m
6.698 m
6.691 m
6.679 m
6.669 m
6.739 m
6.688 m
6.691 m
6.708 m
6.739 m
6.743 m
6.746 m
6.784 m
6.755 m
6.765 m
6.791 m
6.805 m
6.869 m
6.863 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
6.760 m
6.733 m
6.720 m
6.735 m
6.729 m
6.737 m
6.730 m

The whole record since 2002, weekly averages

The whole record since 2002, weekly averages 7.0 m 7.5 m 8.0 m Lowest 6.597 m 6.730 m
  • Level
  • Our record
Weekly averages of the Nottawasaga River at Alliston from 1 January 2002 to 25 October 2026.
Table: The whole record since 2002, weekly averages
Week startingWeekly average (m)
6.861 m
6.858 m
6.858 m
6.850 m
6.965 m
6.910 m
6.905 m
7.014 m
7.092 m
7.030 m
7.045 m
6.898 m
6.929 m
6.966 m
7.207 m
6.953 m
6.884 m
7.083 m
6.922 m
7.195 m
6.885 m
6.903 m
6.828 m
6.908 m
6.917 m
6.810 m
6.726 m
6.700 m
6.683 m
6.718 m
6.755 m
6.681 m
6.706 m
6.723 m
6.702 m
6.678 m
6.675 m
6.711 m
6.716 m
6.725 m
6.722 m
6.746 m
6.776 m
6.759 m
6.773 m
6.813 m
6.787 m
6.779 m
6.786 m
6.811 m
6.891 m
6.876 m
6.865 m
6.848 m
6.846 m
6.908 m
6.930 m
7.002 m
6.953 m
7.004 m
7.034 m
7.077 m
7.117 m
7.729 m
7.271 m
7.044 m
7.029 m
7.034 m
6.884 m
6.852 m
6.912 m
6.893 m
6.860 m
6.839 m
6.814 m
6.931 m
6.739 m
6.684 m
6.674 m
6.664 m
6.660 m
6.653 m
6.635 m
6.689 m
6.712 m
6.654 m
6.679 m
6.650 m
6.635 m
6.702 m
6.751 m
6.733 m
6.713 m
6.804 m
6.770 m
6.822 m
6.977 m
6.853 m
7.034 m
6.967 m
6.965 m
6.959 m
6.898 m
6.997 m
7.140 m
7.071 m
6.978 m
6.959 m
6.997 m
7.044 m
7.053 m
7.061 m
7.077 m
7.690 m
7.072 m
6.887 m
7.162 m
7.423 m
6.989 m
6.926 m
6.962 m
6.907 m
7.016 m
6.916 m
6.860 m
7.152 m
6.827 m
6.736 m
6.801 m
6.727 m
6.687 m
6.817 m
6.747 m
6.827 m
6.719 m
6.694 m
6.680 m
6.663 m
6.687 m
6.699 m
6.734 m
6.675 m
6.653 m
6.655 m
6.660 m
6.698 m
6.715 m
6.721 m
6.841 m
6.753 m
6.737 m
6.765 m
6.872 m
6.919 m
6.852 m
6.958 m
7.213 m
7.298 m
7.155 m
6.973 m
6.932 m
6.939 m
7.105 m
7.294 m
7.093 m
7.073 m
7.254 m
7.108 m
7.163 m
7.465 m
7.602 m
7.070 m
7.095 m
7.238 m
6.932 m
6.856 m
6.829 m
6.773 m
6.760 m
6.702 m
6.760 m
6.693 m
6.654 m
6.681 m
6.750 m
6.715 m
6.669 m
6.684 m
6.649 m
6.697 m
6.670 m
6.688 m
6.649 m
6.651 m
6.650 m
6.744 m
6.669 m
6.682 m
6.703 m
6.742 m
6.711 m
6.735 m
6.871 m
6.771 m
6.994 m
6.857 m
6.845 m
6.894 m
6.997 m
6.899 m
6.981 m
7.043 m
6.915 m
7.230 m
6.980 m
7.044 m
7.030 m
6.932 m
7.343 m
7.566 m
6.944 m
7.161 m
7.214 m
7.042 m
6.917 m
7.157 m
6.837 m
6.885 m
6.962 m
6.842 m
6.946 m
6.815 m
6.738 m
6.702 m
6.745 m
6.696 m
6.780 m
6.698 m
6.677 m
6.691 m
6.642 m
6.637 m
6.657 m
6.677 m
6.697 m
6.706 m
6.732 m
6.755 m
6.753 m
6.793 m
6.867 m
6.923 m
6.909 m
6.879 m
7.042 m
6.851 m
6.822 m
no value
7.138 m
6.933 m
6.881 m
6.981 m
6.952 m
6.873 m
6.893 m
6.903 m
6.945 m
6.981 m
7.013 m
7.077 m
7.071 m
7.476 m
7.180 m
7.224 m
7.251 m
7.000 m
6.939 m
6.934 m
6.841 m
6.818 m
6.898 m
6.778 m
6.793 m
6.776 m
6.702 m
6.672 m
6.652 m
6.652 m
6.656 m
6.664 m
no value
6.619 m
6.625 m
6.606 m
6.649 m
6.637 m
6.645 m
6.666 m
no value
6.635 m
6.644 m
6.671 m
6.668 m
6.685 m
6.675 m
6.702 m
6.693 m
6.784 m
6.763 m
6.963 m
6.843 m
6.944 m
7.001 m
6.851 m
7.569 m
6.939 m
6.911 m
6.986 m
7.259 m
7.102 m
7.320 m
7.083 m
7.334 m
7.219 m
7.208 m
6.961 m
7.804 m
7.761 m
7.165 m
6.937 m
7.079 m
7.014 m
6.872 m
6.848 m
6.797 m
6.807 m
6.794 m
6.804 m
6.821 m
6.723 m
6.725 m
6.712 m
6.757 m
6.699 m
6.884 m
6.851 m
6.731 m
6.691 m
6.678 m
6.756 m
6.927 m
6.724 m
6.769 m
6.748 m
6.739 m
6.760 m
6.789 m
6.783 m
6.924 m
6.939 m
6.849 m
6.876 m
6.897 m
7.231 m
7.403 m
7.384 m
6.971 m
6.985 m
7.004 m
7.028 m
7.092 m
7.773 m
7.080 m
7.055 m
7.259 m
7.482 m
7.113 m
7.019 m
7.375 m
7.238 m
7.031 m
7.081 m
7.261 m
7.163 m
7.125 m
6.931 m
7.294 m
6.952 m
6.895 m
6.876 m
6.826 m
6.937 m
6.795 m
6.773 m
6.805 m
6.834 m
6.765 m
6.962 m
6.848 m
6.854 m
6.788 m
6.757 m
6.745 m
6.761 m
6.870 m
6.915 m
6.837 m
6.850 m
6.897 m
6.879 m
6.826 m
6.838 m
6.876 m
6.988 m
6.899 m
6.916 m
6.940 m
6.964 m
6.960 m
6.953 m
6.946 m
6.980 m
6.911 m
6.899 m
6.916 m
6.950 m
6.848 m
7.299 m
7.579 m
6.997 m
6.986 m
7.000 m
6.851 m
6.796 m
6.774 m
7.032 m
6.948 m
6.790 m
6.731 m
6.858 m
6.878 m
6.808 m
6.856 m
6.924 m
6.911 m
6.769 m
7.027 m
6.812 m
6.718 m
6.806 m
6.742 m
6.732 m
6.707 m
6.712 m
6.749 m
6.777 m
6.938 m
6.763 m
6.800 m
6.796 m
6.855 m
6.803 m
6.781 m
6.863 m
6.867 m
6.951 m
6.865 m
6.915 m
6.888 m
7.138 m
7.141 m
6.936 m
6.931 m
6.938 m
7.007 m
7.023 m
7.293 m
7.238 m
7.251 m
7.672 m
7.581 m
7.117 m
6.980 m
7.237 m
7.073 m
7.147 m
7.234 m
6.937 m
7.036 m
7.281 m
7.037 m
6.914 m
6.852 m
6.779 m
6.791 m
6.752 m
6.719 m
6.696 m
6.679 m
6.721 m
6.733 m
6.729 m
6.721 m
6.745 m
6.742 m
6.730 m
6.697 m
6.750 m
6.749 m
6.774 m
6.815 m
7.061 m
7.054 m
6.826 m
6.798 m
6.797 m
6.797 m
7.314 m
7.044 m
7.025 m
6.956 m
6.878 m
6.969 m
6.888 m
6.927 m
6.970 m
7.010 m
6.871 m
6.826 m
6.837 m
6.918 m
7.290 m
7.325 m
7.073 m
6.896 m
6.828 m
6.799 m
6.786 m
6.928 m
7.231 m
6.967 m
6.787 m
6.740 m
6.832 m
6.857 m
6.722 m
6.687 m
6.673 m
6.656 m
6.645 m
6.642 m
6.731 m
6.679 m
6.825 m
6.763 m
6.688 m
6.673 m
6.727 m
6.724 m
6.775 m
6.725 m
6.724 m
6.739 m
6.789 m
6.917 m
no value
no value
no value
no value
no value
no value
no value
no value
no value
6.824 m
6.976 m
7.119 m
6.850 m
7.170 m
7.072 m
7.043 m
6.996 m
7.002 m
6.939 m
7.422 m
6.934 m
7.113 m
7.110 m
7.740 m
7.407 m
7.083 m
6.952 m
6.892 m
6.871 m
6.972 m
7.025 m
6.871 m
6.965 m
6.792 m
6.772 m
6.775 m
6.958 m
6.764 m
6.738 m
7.043 m
6.801 m
6.727 m
6.696 m
6.761 m
6.756 m
6.737 m
6.813 m
6.809 m
6.740 m
6.889 m
6.857 m
6.909 m
7.023 m
6.911 m
6.870 m
6.959 m
6.876 m
6.923 m
6.889 m
6.952 m
6.988 m
6.962 m
7.098 m
7.335 m
7.152 m
7.149 m
7.228 m
7.233 m
7.314 m
7.298 m
7.242 m
7.357 m
7.392 m
7.436 m
7.751 m
7.970 m
7.705 m
7.220 m
7.267 m
7.015 m
7.035 m
6.926 m
6.849 m
6.815 m
6.829 m
6.893 m
6.859 m
6.789 m
6.863 m
6.803 m
6.752 m
6.891 m
6.804 m
6.868 m
6.905 m
6.773 m
6.834 m
6.987 m
6.827 m
6.806 m
6.843 m
6.849 m
6.846 m
6.840 m
6.861 m
6.889 m
6.846 m
6.842 m
7.120 m
6.853 m
6.940 m
6.940 m
7.170 m
6.953 m
6.977 m
6.964 m
6.975 m
6.979 m
7.032 m
7.059 m
7.081 m
7.106 m
7.156 m
7.380 m
7.437 m
6.909 m
7.002 m
7.157 m
7.040 m
7.045 m
6.847 m
6.796 m
6.795 m
6.735 m
6.784 m
6.770 m
7.017 m
6.940 m
6.913 m
7.195 m
6.854 m
6.746 m
6.695 m
6.669 m
6.706 m
6.700 m
6.688 m
6.681 m
6.679 m
6.677 m
6.668 m
6.666 m
6.678 m
6.714 m
6.707 m
6.726 m
6.792 m
6.754 m
6.808 m
6.787 m
6.813 m
6.777 m
6.750 m
6.795 m
6.805 m
6.879 m
6.865 m
7.066 m
6.911 m
6.955 m
7.197 m
6.854 m
6.941 m
7.051 m
7.076 m
7.328 m
7.154 m
7.167 m
7.701 m
7.232 m
7.060 m
6.916 m
6.953 m
6.873 m
6.881 m
6.877 m
6.797 m
6.749 m
6.762 m
6.718 m
6.680 m
6.676 m
6.665 m
6.667 m
6.648 m
6.690 m
6.652 m
6.669 m
6.744 m
6.662 m
6.644 m
6.676 m
6.662 m
6.654 m
6.674 m
6.687 m
6.678 m
6.716 m
6.718 m
6.746 m
6.718 m
6.711 m
6.734 m
6.783 m
6.777 m
6.800 m
6.839 m
6.995 m
7.006 m
7.145 m
7.000 m
7.007 m
6.860 m
6.861 m
6.853 m
7.354 m
7.173 m
6.921 m
6.814 m
6.819 m
6.990 m
7.437 m
7.172 m
7.026 m
6.910 m
7.443 m
7.025 m
6.860 m
7.076 m
6.873 m
6.849 m
6.820 m
7.419 m
7.244 m
6.913 m
7.006 m
7.058 m
6.915 m
6.967 m
6.852 m
6.829 m
6.817 m
6.813 m
6.863 m
6.809 m
6.807 m
6.799 m
6.807 m
6.884 m
6.907 m
6.852 m
6.930 m
6.898 m
6.933 m
6.956 m
6.867 m
6.869 m
6.934 m
6.939 m
6.928 m
6.963 m
7.335 m
7.423 m
7.751 m
7.197 m
7.142 m
7.242 m
7.922 m
7.095 m
6.923 m
6.891 m
6.857 m
6.951 m
7.124 m
7.140 m
7.343 m
7.748 m
7.164 m
6.979 m
7.065 m
6.957 m
6.861 m
6.853 m
6.810 m
6.812 m
6.828 m
6.933 m
6.790 m
6.797 m
6.854 m
6.773 m
6.778 m
6.898 m
7.110 m
6.821 m
6.777 m
6.788 m
6.765 m
6.767 m
6.849 m
6.812 m
6.798 m
6.816 m
7.071 m
6.967 m
6.878 m
6.868 m
7.003 m
7.011 m
6.872 m
6.985 m
6.963 m
6.973 m
6.943 m
6.867 m
no value
no value
no value
no value
7.137 m
7.216 m
7.098 m
7.753 m
7.519 m
7.204 m
7.153 m
7.255 m
7.424 m
7.360 m
7.198 m
7.084 m
7.171 m
6.992 m
7.052 m
6.949 m
6.922 m
6.891 m
6.863 m
6.818 m
6.792 m
6.789 m
6.775 m
6.760 m
6.757 m
6.750 m
6.764 m
6.749 m
6.756 m
6.825 m
6.787 m
6.771 m
6.788 m
6.774 m
6.801 m
6.819 m
7.023 m
6.869 m
6.864 m
6.894 m
6.915 m
6.875 m
6.968 m
6.876 m
6.889 m
6.986 m
7.189 m
7.243 m
7.012 m
6.947 m
6.859 m
6.891 m
6.861 m
6.853 m
6.889 m
7.434 m
7.120 m
7.037 m
7.141 m
6.966 m
6.914 m
6.863 m
6.875 m
6.820 m
6.851 m
6.908 m
6.871 m
6.806 m
6.825 m
6.744 m
6.749 m
6.715 m
6.778 m
6.756 m
6.742 m
6.740 m
7.122 m
6.733 m
6.726 m
6.733 m
6.736 m
6.761 m
6.748 m
6.720 m
6.749 m
6.754 m
6.773 m
6.888 m
6.821 m
6.816 m
6.786 m
6.848 m
6.903 m
6.890 m
6.911 m
6.990 m
6.844 m
6.884 m
6.853 m
6.824 m
6.818 m
6.816 m
6.842 m
6.849 m
6.916 m
6.956 m
6.943 m
7.237 m
6.901 m
7.120 m
6.929 m
6.814 m
6.903 m
6.801 m
6.843 m
6.895 m
6.767 m
6.733 m
6.728 m
6.714 m
6.707 m
6.686 m
6.703 m
6.701 m
6.726 m
6.718 m
6.689 m
6.704 m
6.688 m
6.680 m
6.672 m
6.678 m
6.677 m
6.708 m
6.699 m
6.880 m
6.737 m
6.777 m
6.752 m
6.738 m
6.944 m
6.798 m
6.764 m
6.795 m
6.803 m
6.805 m
7.032 m
6.915 m
6.828 m
6.832 m
6.803 m
6.783 m
6.868 m
6.903 m
6.959 m
6.990 m
7.383 m
7.535 m
7.248 m
7.485 m
7.306 m
7.215 m
6.928 m
6.921 m
6.873 m
6.875 m
6.848 m
6.870 m
6.760 m
6.781 m
6.764 m
6.719 m
6.831 m
6.749 m
6.694 m
6.683 m
6.686 m
6.676 m
6.689 m
6.691 m
6.682 m
6.670 m
6.667 m
6.717 m
6.674 m
6.660 m
6.673 m
6.677 m
6.701 m
6.672 m
6.688 m
6.690 m
6.685 m
6.693 m
6.688 m
6.700 m
6.708 m
6.753 m
6.712 m
6.733 m
6.737 m
6.870 m
6.922 m
6.766 m
6.751 m
6.738 m
6.826 m
7.067 m
7.003 m
6.949 m
6.829 m
6.763 m
6.858 m
7.167 m
7.305 m
7.411 m
6.950 m
6.940 m
6.916 m
7.024 m
6.911 m
6.780 m
6.747 m
6.699 m
6.691 m
6.800 m
6.696 m
6.766 m
6.697 m
6.919 m
6.805 m
6.741 m
6.746 m
6.732 m
6.700 m
6.754 m
6.706 m
6.685 m
6.695 m
6.689 m
6.672 m
6.684 m
6.694 m
6.699 m
6.715 m
6.708 m
6.804 m
6.737 m
6.743 m
6.742 m
6.778 m
6.780 m
6.758 m
6.918 m
6.781 m
6.855 m
6.839 m
6.973 m
6.909 m
6.896 m
6.842 m
6.825 m
6.995 m
6.948 m
6.994 m
6.853 m
6.872 m
7.057 m
7.161 m
7.086 m
6.861 m
7.034 m
6.865 m
6.825 m
6.891 m
6.926 m
6.750 m
6.727 m
6.832 m
6.800 m
6.724 m
7.008 m
6.876 m
6.751 m
6.796 m
6.782 m
6.739 m
6.805 m
6.705 m
6.692 m
6.694 m
6.680 m
6.738 m
6.715 m
6.705 m
6.708 m
6.703 m
6.720 m
6.716 m
6.741 m
6.768 m
6.749 m
6.736 m
6.790 m
6.848 m
6.812 m
7.039 m
6.824 m
6.809 m
6.826 m
6.883 m
6.938 m
6.993 m
7.069 m
7.091 m
7.202 m
7.331 m
7.452 m
7.037 m
7.643 m
6.996 m
6.928 m
6.869 m
6.917 m
6.822 m
6.807 m
6.966 m
6.861 m
6.846 m
6.755 m
6.725 m
6.734 m
6.753 m
6.741 m
6.693 m
6.720 m
6.722 m
6.668 m
6.661 m
6.754 m
6.698 m
6.691 m
6.679 m
6.669 m
6.739 m
6.688 m
6.691 m
6.708 m
6.739 m
6.743 m
6.746 m
6.784 m
6.755 m
6.765 m
6.791 m
6.805 m
6.869 m
6.863 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
6.760 m
6.733 m
6.720 m
6.735 m
6.729 m
6.737 m
6.730 m

How this compares

  • The daily average on 25 October 2026 was 6.728 m, the eighth lowest for 25 October in 25 years of record (2002 to 2026). The newest value is provisional.
  • That is 0.03 m below the median of 6.76 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
6.725 m
6.703 m
6.703 m
6.68 m
6.797 m
6.97 m
6.789 m
6.82 m
6.871 m
6.702 m

Year by year

The lowest and highest daily average of each year

The lowest and highest daily average of each year 7 m 8 m Lowest 6.597 m, 2007 Highest 8.643 m, 2018
  • 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 Nottawasaga River at Alliston in each year from 2002 to 2025 with a value on at least 300 days, and in 2026 so far. The lowest daily average in our series since 1 January 2002 was 6.597 m, on 18 August 2007. The highest was 8.643 m, on 21 February 2018.
Table: The lowest and highest daily average of each year
YearLowest daily average (m)DayHighest daily average (m)DayDays with a value
6.665 m7.505 m365
6.61 m8.315 m365
6.644 m8.40 m362
6.624 m7.824 m365
6.621 m8.277 m351
6.597 m8.047 m345
6.672 m8.319 m363
6.743 m8.388 m365
6.689 m8.186 m363
6.674 m8.221 m364
6.631 m8.026 m303
6.688 m8.01 m365
6.746 m8.483 m365
6.661 m7.762 m365
6.632 m8.08 m366
6.773 m8.519 m365
6.752 m8.643 m365
6.741 m8.538 m337
6.696 m8.46 m366
6.662 m7.818 m365
6.654 m7.898 m365
6.668 m7.856 m365
6.676 m7.66 m366
6.652 m8.281 m365
so far, provisional6.715 m6.782 m46

Each year from January to December, weekly averages

Each year from January to December, weekly averages 7.0 m 7.5 m 8.0 m 2007, lowest day 2018, highest day 2026 so far
  • The year so far
  • , the year before
  • Year of the lowest day in our series
  • Year of the highest day in our series
  • Other years
  • Normal range for the week
The weekly averages of the Nottawasaga River at Alliston in each year from 2002 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 1 January 2002 was in 2007, the highest in 2018. 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), highest day Weekly average (m)Normal range (m)
to no value6.981 m6.963 m6.813 m to 7.132 m
to no value6.952 m7.335 m6.807 m to 7.206 m
to no value6.873 m7.423 m6.810 m to 7.247 m
to no value6.894 m7.751 m6.823 m to 7.142 m
to no value6.903 m7.197 m6.842 m to 7.168 m
to no value6.945 m7.142 m6.845 m to 7.221 m
to no value6.981 m7.242 m6.845 m to 7.319 m
to no value7.013 m7.922 m6.845 m to 7.373 m
to no value7.077 m7.095 m6.850 m to 7.385 m
to no value7.071 m6.923 m6.881 m to 7.609 m
to no value7.476 m6.891 m6.868 m to 7.741 m
to no value7.180 m6.857 m6.864 m to 7.487 m
to no value7.224 m6.951 m6.865 m to 7.555 m
to no value7.251 m7.124 m6.876 m to 7.714 m
to no value7.000 m7.140 m6.844 m to 7.606 m
to no value6.939 m7.343 m6.833 m to 7.386 m
to no value6.934 m7.748 m6.816 m to 7.302 m
to no value6.841 m7.164 m6.812 m to 7.263 m
to no value6.818 m6.979 m6.786 m to 7.174 m
to no value6.898 m7.065 m6.762 m to 7.086 m
to no value6.778 m6.957 m6.735 m to 7.069 m
to no value6.793 m6.861 m6.723 m to 7.030 m
to no value6.776 m6.853 m6.713 m to 6.951 m
to no value6.702 m6.810 m6.700 m to 6.923 m
to no value6.672 m6.812 m6.682 m to 6.907 m
to no value6.652 m6.828 m6.668 m to 6.901 m
to no value6.652 m6.933 m6.658 m to 6.920 m
to no value6.656 m6.790 m6.659 m to 6.905 m
to no value6.664 m6.797 m6.656 m to 6.873 m
to no valueno value6.854 m6.661 m to 6.867 m
to no value6.619 m6.773 m6.663 m to 6.866 m
to no value6.625 m6.778 m6.647 m to 6.856 m
to no value6.606 m6.898 m6.645 m to 6.845 m
to no value6.649 m7.110 m6.651 m to 6.824 m
to no value6.637 m6.821 m6.658 m to 6.808 m
to no value6.645 m6.777 m6.657 m to 6.810 m
to 6.749 m6.666 m6.788 m6.657 m to 6.814 m
to 6.727 mno value6.765 m6.661 m to 6.813 m
to 6.717 m6.635 m6.767 m6.665 m to 6.817 m
to 6.740 m6.644 m6.849 m6.669 m to 6.832 m
to 6.730 m6.671 m6.812 m6.672 m to 6.862 m
to 6.737 m6.668 m6.798 m6.688 m to 6.879 m
to no value6.685 m6.816 m6.697 m to 6.944 m
to no value6.675 m7.071 m6.705 m to 6.972 m
to no value6.702 m6.967 m6.707 m to 6.930 m
to no value6.693 m6.878 m6.712 m to 6.927 m
to no value6.784 m6.868 m6.727 m to 6.977 m
to no value6.763 m7.003 m6.742 m to 7.018 m
to no value6.963 m7.011 m6.750 m to 7.040 m
to no value6.843 m6.872 m6.754 m to 7.004 m
to no value6.944 m6.985 m6.778 m to 7.087 m
to no value6.973 m6.959 m6.802 m to 7.160 m
Every year
YearDays with a valueDays below the normal range
to 470
36510
36653
36591
36595
36580
3668
3370
3656
36521
36663
36528
3650
3655
30370
3640
36330
3650
3631
345126
35123
36558
36233
36541
3656

How it compares

That is within the normal range for the date.

Records

  • Highest daily average in our series since 1 January 2002: 8.643 m on 21 February 2018.
  • Lowest daily average in our series since 1 January 2002: 6.597 m on 18 August 2007.

Also on this water

About this gauge

Alliston is a gauge on the Nottawasaga River in Canada.

It lies at 44.1106° N, 79.8903° W.

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

Our readings for this gauge go back to 1 January 2002.

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 6.70 m to 6.94 m: the 10th to 90th percentile of the daily averages from 18 October to 1 November in 24 years between 2002 and 2025.

Keep exploring

Sources