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Grand Hers water level at Calmont today

Is the Grand Hers unusually low at Calmont?

The Grand Hers at Calmont read 0.662 m at .

Level now

in the lowest 5 percent for the date

0.662 m

Provisional

in the lowest 5 percent for the date

0.662 mNormal for the date0.71 m to 0.94 mMedian 0.80 m
The normal range for 26 October is 0.71 m to 0.94 m: the 10th to 90th percentile of the daily highs from 19 October to 2 November in 30 years between 1996 and 2025.
Table: where the water stands
LevelValue
Newest reading0.662 m,
Normal range for the date0.71 m to 0.94 m
Median for the date0.80 m
Past day
+0.008 m
Past week
-0.01 m

The gauge reads the height of the water above a fixed zero, not the depth of the river. Its zero lies at 199.61 m above NGF-IGN69 (the French sea-level datum).

Level history

in the lowest 5 percent for the date

On the Grand Hers at Calmont averaged 0.681 m.

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

The last 90 days, against the normal range for each day 0.50 m 0.75 m 1.00 m 1.25 m Lowest 0.535 m 0.681 m
  • Level
  • Below the normal range
  • Above the normal range
  • Normal range for the date
  • Median for the date
  • A year earlier
  • Our record
Daily highs of the Grand Hers at Calmont 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 high (m)Normal rangeMedianA year earlier
0.874 m0.788 m to 1.051 m0.879 m0.826 m
0.935 m0.788 m to 1.064 m0.879 m0.813 m
0.930 m0.790 m to 1.074 m0.880 m0.813 m
0.888 m0.793 m to 1.110 m0.885 m0.847 m
0.901 m0.795 m to 1.114 m0.890 m0.854 m
0.838 m0.793 m to 1.121 m0.890 m0.861 m
0.923 m0.795 m to 1.117 m0.898 m0.861 m
0.923 m0.791 m to 1.120 m0.899 m0.799 m
0.826 m0.790 m to 1.112 m0.899 m0.861 m
0.769 m0.790 m to 1.068 m0.897 m0.875 m
0.801 m0.791 m to 1.060 m0.898 m0.898 m
0.813 m0.795 m to 1.060 m0.894 m0.874 m
0.821 m0.791 m to 1.060 m0.890 m0.854 m
0.798 m0.795 m to 1.055 m0.890 m0.846 m
0.758 m0.797 m to 1.050 m0.890 m0.854 m
0.766 m0.797 m to 1.040 m0.890 m0.841 m
0.786 m0.795 m to 1.032 m0.890 m0.917 m
0.806 m0.789 m to 1.030 m0.890 m0.909 m
0.842 m0.788 m to 1.020 m0.885 m0.814 m
0.793 m0.786 m to 1.019 m0.883 m0.811 m
0.763 m0.785 m to 1.015 m0.879 m0.796 m
0.772 m0.785 m to 1.015 m0.875 m0.848 m
0.779 m0.783 m to 1.010 m0.875 m0.848 m
1.142 m0.780 m to 1.010 m0.874 m0.840 m
1.265 m0.780 m to 1.010 m0.871 m0.847 m
0.800 m0.780 m to 0.999 m0.868 m0.792 m
0.724 m0.780 m to 0.990 m0.864 m0.751 m
0.748 m0.777 m to 0.985 m0.859 m0.731 m
0.745 m0.775 m to 0.982 m0.854 m0.834 m
0.722 m0.770 m to 0.979 m0.850 m0.903 m
0.733 m0.765 m to 0.979 m0.850 m0.833 m
0.731 m0.760 m to 0.974 m0.846 m0.929 m
0.724 m0.760 m to 0.972 m0.845 m0.798 m
0.727 m0.760 m to 0.971 m0.845 m0.836 m
0.711 m0.758 m to 0.965 m0.845 m0.842 m
0.703 m0.760 m to 0.962 m0.842 m0.888 m
0.724 m0.758 m to 0.958 m0.840 m0.802 m
0.724 m0.757 m to 0.953 m0.836 m0.772 m
0.738 m0.757 m to 0.940 m0.833 m0.826 m
0.738 m0.757 m to 0.939 m0.830 m0.785 m
0.731 m0.757 m to 0.939 m0.828 m0.805 m
0.724 m0.756 m to 0.940 m0.828 m0.806 m
0.731 m0.755 m to 0.940 m0.825 m0.811 m
0.744 m0.755 m to 0.945 m0.820 m0.799 m
0.764 m0.754 m to 0.950 m0.819 m0.786 m
0.722 m0.754 m to 0.966 m0.818 m0.768 m
0.729 m0.755 m to 0.970 m0.816 m0.833 m
0.731 m0.754 m to 0.970 m0.816 m0.788 m
0.730 m0.753 m to 0.970 m0.814 m0.812 m
0.729 m0.750 m to 0.980 m0.813 m0.758 m
0.731 m0.750 m to 0.990 m0.812 m0.783 m
0.731 m0.749 m to 1.024 m0.811 m0.779 m
0.724 m0.748 m to 1.029 m0.810 m0.778 m
0.731 m0.746 m to 1.030 m0.808 m0.785 m
0.730 m0.745 m to 1.035 m0.807 m0.784 m
0.718 m0.741 m to 1.050 m0.808 m0.805 m
0.716 m0.740 m to 1.060 m0.806 m0.808 m
0.690 m0.740 m to 1.062 m0.806 m0.812 m
0.683 m0.740 m to 1.062 m0.806 m0.768 m
0.676 m0.740 m to 1.067 m0.806 m0.778 m
0.683 m0.741 m to 1.062 m0.806 m0.768 m
0.683 m0.745 m to 1.053 m0.806 m0.784 m
0.681 m0.746 m to 1.050 m0.808 m0.784 m
0.681 m0.750 m to 1.040 m0.810 m0.768 m
0.676 m0.750 m to 1.040 m0.811 m0.778 m
0.683 m0.750 m to 1.036 m0.815 m0.778 m
0.689 m0.750 m to 1.040 m0.816 m0.784 m
0.689 m0.755 m to 1.040 m0.817 m0.776 m
0.683 m0.759 m to 1.040 m0.817 m0.791 m
0.709 m0.756 m to 1.051 m0.819 m0.796 m
0.682 m0.756 m to 1.059 m0.820 m0.784 m
0.730 m0.755 m to 1.060 m0.820 m0.785 m
0.764 m0.755 m to 1.069 m0.820 m0.784 m
0.687 m0.745 m to 1.070 m0.820 m0.778 m
0.682 m0.745 m to 1.070 m0.819 m0.778 m
0.682 m0.745 m to 1.070 m0.818 m0.774 m
0.683 m0.745 m to 1.080 m0.816 m0.771 m
0.683 m0.743 m to 1.095 m0.814 m0.768 m
0.682 m0.743 m to 1.090 m0.813 m0.774 m
0.674 m0.743 m to 1.095 m0.810 m0.785 m
0.675 m0.743 m to 1.095 m0.809 m0.785 m
0.682 m0.743 m to 1.090 m0.805 m0.785 m
0.689 m0.743 m to 1.070 m0.805 m0.785 m
0.682 m0.743 m to 1.059 m0.804 m0.778 m
0.688 m0.743 m to 1.041 m0.801 m0.778 m
0.688 m0.743 m to 1.029 m0.801 m0.778 m
0.675 m0.743 m to 1.016 m0.800 m0.785 m
0.681 m0.744 m to 0.989 m0.800 m0.846 m
0.688 m0.750 m to 0.972 m0.800 m0.792 m
0.681 m0.746 m to 0.950 m0.800 m0.778 m

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

The last 12 months, against the normal range for each day 2 m 4 m Lowest 0.535 m 0.681 m
  • Level
  • Below the normal range
  • Above the normal range
  • Normal range for the date
  • Median for the date
  • Our record
Daily highs of the Grand Hers at Calmont 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 high (m)Normal rangeMedian
0.778 m0.746 m to 0.950 m0.800 m
0.778 m0.711 m to 0.945 m0.799 m
0.778 m0.698 m to 0.942 m0.798 m
0.778 m0.695 m to 0.942 m0.796 m
0.777 m0.693 m to 0.940 m0.793 m
0.768 m0.690 m to 0.942 m0.793 m
0.768 m0.675 m to 0.946 m0.793 m
0.764 m0.665 m to 0.955 m0.791 m
0.689 m0.655 m to 0.972 m0.789 m
0.654 m0.650 m to 1.015 m0.790 m
0.633 m0.645 m to 1.045 m0.791 m
0.621 m0.645 m to 1.152 m0.791 m
0.689 m0.643 m to 1.172 m0.790 m
0.784 m0.641 m to 1.206 m0.791 m
1.037 m0.640 m to 1.230 m0.790 m
1.169 m0.635 m to 1.242 m0.790 m
1.152 m0.635 m to 1.249 m0.797 m
0.920 m0.635 m to 1.255 m0.805 m
0.832 m0.635 m to 1.290 m0.814 m
0.791 m0.637 m to 1.291 m0.816 m
0.757 m0.640 m to 1.291 m0.819 m
0.739 m0.645 m to 1.291 m0.822 m
0.726 m0.645 m to 1.298 m0.835 m
0.720 m0.648 m to 1.300 m0.840 m
0.709 m0.650 m to 1.319 m0.840 m
0.756 m0.655 m to 1.325 m0.845 m
0.750 m0.660 m to 1.339 m0.845 m
0.729 m0.665 m to 1.350 m0.845 m
0.729 m0.666 m to 1.350 m0.845 m
0.736 m0.670 m to 1.350 m0.846 m
0.846 m0.671 m to 1.396 m0.851 m
1.133 m0.676 m to 1.410 m0.855 m
1.214 m0.694 m to 1.410 m0.858 m
1.070 m0.694 m to 1.410 m0.863 m
0.940 m0.699 m to 1.419 m0.878 m
0.871 m0.701 m to 1.438 m0.894 m
0.832 m0.701 m to 1.438 m0.905 m
0.825 m0.703 m to 1.440 m0.917 m
0.811 m0.708 m to 1.469 m0.926 m
0.797 m0.709 m to 1.500 m0.941 m
0.790 m0.708 m to 1.500 m0.952 m
0.791 m0.708 m to 1.507 m0.963 m
0.811 m0.710 m to 1.510 m0.976 m
0.817 m0.711 m to 1.540 m0.988 m
0.791 m0.713 m to 1.551 m0.991 m
0.798 m0.713 m to 1.595 m1.003 m
0.791 m0.713 m to 1.609 m1.021 m
0.784 m0.713 m to 1.599 m1.044 m
0.777 m0.713 m to 1.575 m1.050 m
0.768 m0.713 m to 1.571 m1.065 m
0.763 m0.713 m to 1.571 m1.070 m
0.755 m0.713 m to 1.572 m1.095 m
0.763 m0.713 m to 1.564 m1.095 m
0.750 m0.713 m to 1.546 m1.095 m
0.741 m0.713 m to 1.538 m1.090 m
0.735 m0.713 m to 1.534 m1.080 m
0.729 m0.714 m to 1.529 m1.075 m
0.722 m0.714 m to 1.524 m1.073 m
0.749 m0.713 m to 1.510 m1.068 m
0.858 m0.711 m to 1.486 m1.068 m
1.219 m0.705 m to 1.484 m1.068 m
1.139 m0.699 m to 1.482 m1.080 m
0.989 m0.695 m to 1.480 m1.095 m
1.420 m0.688 m to 1.479 m1.100 m
1.566 m0.687 m to 1.478 m1.110 m
1.406 m0.686 m to 1.460 m1.153 m
1.221 m0.684 m to 1.440 m1.160 m
1.114 m0.683 m to 1.430 m1.160 m
1.029 m0.683 m to 1.430 m1.160 m
0.974 m0.683 m to 1.440 m1.158 m
0.940 m0.684 m to 1.440 m1.160 m
0.913 m0.684 m to 1.440 m1.160 m
0.899 m0.684 m to 1.453 m1.155 m
0.879 m0.684 m to 1.459 m1.152 m
0.851 m0.686 m to 1.460 m1.150 m
0.859 m0.687 m to 1.482 m1.147 m
1.001 m0.687 m to 1.500 m1.143 m
1.556 m0.692 m to 1.500 m1.143 m
1.639 m0.702 m to 1.513 m1.143 m
1.478 m0.738 m to 1.550 m1.143 m
1.340 m0.740 m to 1.560 m1.147 m
1.269 m0.742 m to 1.576 m1.147 m
1.217 m0.743 m to 1.585 m1.175 m
1.174 m0.753 m to 1.609 m1.187 m
1.130 m0.763 m to 1.619 m1.202 m
1.084 m0.765 m to 1.644 m1.207 m
1.159 m0.804 m to 1.649 m1.199 m
2.504 m0.811 m to 1.666 m1.203 m
2.490 m0.812 m to 1.724 m1.207 m
1.654 m0.812 m to 1.766 m1.211 m
1.668 m0.813 m to 1.800 m1.218 m
1.723 m0.813 m to 1.830 m1.220 m
1.858 m0.810 m to 1.876 m1.220 m
1.792 m0.808 m to 1.927 m1.230 m
1.722 m0.807 m to 1.936 m1.250 m
1.661 m0.805 m to 1.927 m1.250 m
1.606 m0.807 m to 1.933 m1.248 m
1.526 m0.808 m to 1.947 m1.240 m
1.693 m0.808 m to 1.890 m1.248 m
1.894 m0.808 m to 1.854 m1.255 m
1.752 m0.806 m to 1.824 m1.274 m
1.935 m0.806 m to 1.804 m1.275 m
1.654 m0.806 m to 1.780 m1.272 m
1.525 m0.804 m to 1.742 m1.265 m
1.453 m0.807 m to 1.730 m1.260 m
1.386 m0.807 m to 1.710 m1.260 m
1.344 m0.807 m to 1.682 m1.255 m
1.396 m0.810 m to 1.674 m1.250 m
3.391 m0.811 m to 1.646 m1.250 m
5.095 m0.812 m to 1.633 m1.240 m
3.694 m0.814 m to 1.633 m1.240 m
2.500 m0.814 m to 1.632 m1.240 m
4.578 m0.812 m to 1.625 m1.234 m
4.716 m0.812 m to 1.625 m1.230 m
3.985 m0.814 m to 1.618 m1.225 m
4.523 m0.813 m to 1.625 m1.220 m
2.955 m0.814 m to 1.627 m1.215 m
2.244 m0.815 m to 1.618 m1.215 m
1.888 m0.816 m to 1.582 m1.215 m
1.761 m0.818 m to 1.566 m1.225 m
1.648 m0.822 m to 1.566 m1.225 m
1.579 m0.821 m to 1.551 m1.225 m
1.530 m0.820 m to 1.542 m1.220 m
1.504 m0.821 m to 1.566 m1.215 m
1.468 m0.821 m to 1.596 m1.215 m
1.435 m0.823 m to 1.604 m1.215 m
1.414 m0.825 m to 1.610 m1.212 m
1.393 m0.825 m to 1.617 m1.215 m
1.379 m0.837 m to 1.617 m1.220 m
1.346 m0.841 m to 1.617 m1.220 m
1.325 m0.844 m to 1.617 m1.225 m
1.311 m0.889 m to 1.618 m1.224 m
1.332 m0.893 m to 1.652 m1.220 m
1.627 m0.895 m to 1.648 m1.220 m
1.599 m0.897 m to 1.618 m1.220 m
1.509 m0.895 m to 1.596 m1.220 m
1.435 m0.895 m to 1.588 m1.220 m
1.393 m0.899 m to 1.570 m1.220 m
1.381 m0.899 m to 1.551 m1.220 m
1.380 m0.900 m to 1.521 m1.220 m
1.716 m0.904 m to 1.502 m1.217 m
1.718 m0.908 m to 1.495 m1.217 m
1.544 m0.914 m to 1.476 m1.211 m
1.468 m0.915 m to 1.461 m1.210 m
1.429 m0.915 m to 1.458 m1.205 m
1.393 m0.915 m to 1.451 m1.201 m
1.359 m0.915 m to 1.443 m1.200 m
1.339 m0.915 m to 1.444 m1.200 m
1.319 m0.914 m to 1.448 m1.200 m
1.339 m0.912 m to 1.454 m1.192 m
1.338 m0.914 m to 1.485 m1.198 m
1.311 m0.915 m to 1.505 m1.200 m
1.286 m0.915 m to 1.511 m1.200 m
1.283 m0.916 m to 1.511 m1.200 m
1.263 m0.919 m to 1.511 m1.200 m
1.256 m0.919 m to 1.518 m1.200 m
1.249 m0.915 m to 1.526 m1.198 m
1.235 m0.912 m to 1.546 m1.192 m
1.304 m0.904 m to 1.561 m1.190 m
3.334 m0.902 m to 1.570 m1.183 m
3.023 m0.902 m to 1.564 m1.180 m
1.806 m0.900 m to 1.557 m1.180 m
1.634 m0.897 m to 1.557 m1.180 m
1.553 m0.897 m to 1.557 m1.180 m
1.504 m0.896 m to 1.554 m1.181 m
1.476 m0.894 m to 1.550 m1.181 m
1.449 m0.892 m to 1.550 m1.181 m
1.415 m0.890 m to 1.550 m1.187 m
1.403 m0.884 m to 1.550 m1.187 m
1.393 m0.872 m to 1.550 m1.183 m
1.436 m0.861 m to 1.542 m1.183 m
1.434 m0.853 m to 1.542 m1.187 m
1.386 m0.839 m to 1.542 m1.195 m
1.339 m0.830 m to 1.530 m1.204 m
1.318 m0.823 m to 1.518 m1.210 m
1.298 m0.817 m to 1.529 m1.210 m
1.284 m0.813 m to 1.517 m1.210 m
1.311 m0.810 m to 1.530 m1.215 m
1.298 m0.813 m to 1.541 m1.221 m
1.290 m0.815 m to 1.550 m1.221 m
1.295 m0.816 m to 1.570 m1.223 m
1.269 m0.817 m to 1.570 m1.228 m
1.263 m0.818 m to 1.579 m1.228 m
1.263 m0.818 m to 1.595 m1.228 m
1.230 m0.821 m to 1.647 m1.240 m
1.374 m0.826 m to 1.680 m1.250 m
1.326 m0.835 m to 1.694 m1.252 m
1.277 m0.842 m to 1.696 m1.250 m
1.257 m0.852 m to 1.693 m1.250 m
1.223 m0.861 m to 1.696 m1.241 m
1.214 m0.866 m to 1.696 m1.230 m
1.216 m0.872 m to 1.702 m1.228 m
1.236 m0.872 m to 1.696 m1.225 m
1.229 m0.872 m to 1.701 m1.215 m
1.339 m0.872 m to 1.697 m1.210 m
1.291 m0.871 m to 1.692 m1.210 m
1.243 m0.866 m to 1.691 m1.203 m
1.185 m0.866 m to 1.684 m1.196 m
1.203 m0.866 m to 1.675 m1.195 m
1.269 m0.865 m to 1.627 m1.184 m
1.229 m0.862 m to 1.602 m1.175 m
1.188 m0.856 m to 1.590 m1.168 m
1.160 m0.843 m to 1.578 m1.161 m
1.139 m0.831 m to 1.566 m1.161 m
1.126 m0.822 m to 1.552 m1.150 m
1.220 m0.814 m to 1.527 m1.146 m
1.203 m0.809 m to 1.527 m1.142 m
1.025 m0.800 m to 1.524 m1.140 m
0.970 m0.793 m to 1.520 m1.127 m
0.936 m0.776 m to 1.518 m1.130 m
0.917 m0.761 m to 1.505 m1.124 m
0.903 m0.761 m to 1.500 m1.120 m
0.889 m0.758 m to 1.479 m1.120 m
0.874 m0.758 m to 1.470 m1.113 m
0.853 m0.756 m to 1.455 m1.100 m
0.827 m0.755 m to 1.446 m1.094 m
0.813 m0.755 m to 1.441 m1.080 m
0.819 m0.746 m to 1.441 m1.080 m
0.798 m0.746 m to 1.440 m1.076 m
0.902 m0.755 m to 1.440 m1.070 m
0.779 m0.761 m to 1.430 m1.060 m
0.814 m0.761 m to 1.430 m1.054 m
0.808 m0.760 m to 1.431 m1.050 m
0.825 m0.760 m to 1.440 m1.041 m
0.942 m0.760 m to 1.448 m1.030 m
0.798 m0.760 m to 1.458 m1.020 m
0.768 m0.756 m to 1.464 m1.017 m
0.833 m0.748 m to 1.460 m1.010 m
0.764 m0.738 m to 1.460 m1.001 m
0.768 m0.735 m to 1.460 m0.990 m
0.744 m0.732 m to 1.458 m0.969 m
0.689 m0.732 m to 1.457 m0.960 m
0.670 m0.730 m to 1.442 m0.941 m
0.651 m0.730 m to 1.425 m0.925 m
0.636 m0.725 m to 1.420 m0.909 m
0.629 m0.719 m to 1.399 m0.899 m
0.608 m0.710 m to 1.381 m0.880 m
0.658 m0.705 m to 1.358 m0.855 m
0.708 m0.700 m to 1.330 m0.845 m
0.739 m0.698 m to 1.295 m0.833 m
0.738 m0.698 m to 1.254 m0.825 m
0.696 m0.696 m to 1.232 m0.815 m
0.719 m0.695 m to 1.194 m0.806 m
0.739 m0.698 m to 1.150 m0.804 m
0.753 m0.703 m to 1.110 m0.802 m
0.724 m0.707 m to 1.083 m0.800 m
0.850 m0.709 m to 1.069 m0.800 m
1.032 m0.711 m to 1.034 m0.800 m
0.841 m0.714 m to 1.011 m0.800 m
0.752 m0.717 m to 0.993 m0.805 m
0.779 m0.720 m to 0.975 m0.805 m
0.777 m0.726 m to 0.964 m0.810 m
0.785 m0.730 m to 0.958 m0.815 m
0.916 m0.735 m to 0.953 m0.815 m
0.918 m0.742 m to 0.958 m0.819 m
0.938 m0.750 m to 0.958 m0.822 m
0.950 m0.762 m to 0.954 m0.824 m
0.956 m0.770 m to 0.962 m0.825 m
1.011 m0.770 m to 0.965 m0.825 m
0.984 m0.771 m to 0.966 m0.830 m
0.848 m0.776 m to 0.976 m0.830 m
0.958 m0.778 m to 0.983 m0.833 m
0.923 m0.778 m to 0.985 m0.837 m
0.932 m0.778 m to 0.985 m0.840 m
0.931 m0.779 m to 0.985 m0.840 m
0.899 m0.780 m to 0.988 m0.840 m
0.901 m0.780 m to 0.990 m0.848 m
0.896 m0.778 m to 0.991 m0.852 m
0.891 m0.779 m to 1.001 m0.857 m
0.875 m0.781 m to 1.010 m0.860 m
0.881 m0.781 m to 1.025 m0.865 m
0.889 m0.781 m to 1.034 m0.870 m
0.910 m0.783 m to 1.038 m0.871 m
0.909 m0.786 m to 1.040 m0.875 m
0.916 m0.786 m to 1.047 m0.878 m
0.861 m0.786 m to 1.047 m0.878 m
0.874 m0.788 m to 1.051 m0.879 m
0.935 m0.788 m to 1.064 m0.879 m
0.930 m0.790 m to 1.074 m0.880 m
0.888 m0.793 m to 1.110 m0.885 m
0.901 m0.795 m to 1.114 m0.890 m
0.838 m0.793 m to 1.121 m0.890 m
0.923 m0.795 m to 1.117 m0.898 m
0.923 m0.791 m to 1.120 m0.899 m
0.826 m0.790 m to 1.112 m0.899 m
0.769 m0.790 m to 1.068 m0.897 m
0.801 m0.791 m to 1.060 m0.898 m
0.813 m0.795 m to 1.060 m0.894 m
0.821 m0.791 m to 1.060 m0.890 m
0.798 m0.795 m to 1.055 m0.890 m
0.758 m0.797 m to 1.050 m0.890 m
0.766 m0.797 m to 1.040 m0.890 m
0.786 m0.795 m to 1.032 m0.890 m
0.806 m0.789 m to 1.030 m0.890 m
0.842 m0.788 m to 1.020 m0.885 m
0.793 m0.786 m to 1.019 m0.883 m
0.763 m0.785 m to 1.015 m0.879 m
0.772 m0.785 m to 1.015 m0.875 m
0.779 m0.783 m to 1.010 m0.875 m
1.142 m0.780 m to 1.010 m0.874 m
1.265 m0.780 m to 1.010 m0.871 m
0.800 m0.780 m to 0.999 m0.868 m
0.724 m0.780 m to 0.990 m0.864 m
0.748 m0.777 m to 0.985 m0.859 m
0.745 m0.775 m to 0.982 m0.854 m
0.722 m0.770 m to 0.979 m0.850 m
0.733 m0.765 m to 0.979 m0.850 m
0.731 m0.760 m to 0.974 m0.846 m
0.724 m0.760 m to 0.972 m0.845 m
0.727 m0.760 m to 0.971 m0.845 m
0.711 m0.758 m to 0.965 m0.845 m
0.703 m0.760 m to 0.962 m0.842 m
0.724 m0.758 m to 0.958 m0.840 m
0.724 m0.757 m to 0.953 m0.836 m
0.738 m0.757 m to 0.940 m0.833 m
0.738 m0.757 m to 0.939 m0.830 m
0.731 m0.757 m to 0.939 m0.828 m
0.724 m0.756 m to 0.940 m0.828 m
0.731 m0.755 m to 0.940 m0.825 m
0.744 m0.755 m to 0.945 m0.820 m
0.764 m0.754 m to 0.950 m0.819 m
0.722 m0.754 m to 0.966 m0.818 m
0.729 m0.755 m to 0.970 m0.816 m
0.731 m0.754 m to 0.970 m0.816 m
0.730 m0.753 m to 0.970 m0.814 m
0.729 m0.750 m to 0.980 m0.813 m
0.731 m0.750 m to 0.990 m0.812 m
0.731 m0.749 m to 1.024 m0.811 m
0.724 m0.748 m to 1.029 m0.810 m
0.731 m0.746 m to 1.030 m0.808 m
0.730 m0.745 m to 1.035 m0.807 m
0.718 m0.741 m to 1.050 m0.808 m
0.716 m0.740 m to 1.060 m0.806 m
0.690 m0.740 m to 1.062 m0.806 m
0.683 m0.740 m to 1.062 m0.806 m
0.676 m0.740 m to 1.067 m0.806 m
0.683 m0.741 m to 1.062 m0.806 m
0.683 m0.745 m to 1.053 m0.806 m
0.681 m0.746 m to 1.050 m0.808 m
0.681 m0.750 m to 1.040 m0.810 m
0.676 m0.750 m to 1.040 m0.811 m
0.683 m0.750 m to 1.036 m0.815 m
0.689 m0.750 m to 1.040 m0.816 m
0.689 m0.755 m to 1.040 m0.817 m
0.683 m0.759 m to 1.040 m0.817 m
0.709 m0.756 m to 1.051 m0.819 m
0.682 m0.756 m to 1.059 m0.820 m
0.730 m0.755 m to 1.060 m0.820 m
0.764 m0.755 m to 1.069 m0.820 m
0.687 m0.745 m to 1.070 m0.820 m
0.682 m0.745 m to 1.070 m0.819 m
0.682 m0.745 m to 1.070 m0.818 m
0.683 m0.745 m to 1.080 m0.816 m
0.683 m0.743 m to 1.095 m0.814 m
0.682 m0.743 m to 1.090 m0.813 m
0.674 m0.743 m to 1.095 m0.810 m
0.675 m0.743 m to 1.095 m0.809 m
0.682 m0.743 m to 1.090 m0.805 m
0.689 m0.743 m to 1.070 m0.805 m
0.682 m0.743 m to 1.059 m0.804 m
0.688 m0.743 m to 1.041 m0.801 m
0.688 m0.743 m to 1.029 m0.801 m
0.675 m0.743 m to 1.016 m0.800 m
0.681 m0.744 m to 0.989 m0.800 m
0.688 m0.750 m to 0.972 m0.800 m
0.681 m0.746 m to 0.950 m0.800 m

The last 10 years, weekly averages

The last 10 years, weekly averages 1 m 2 m 3 m Lowest 0.535 m 0.683 m
  • Level
  • Our record
Weekly averages of the Grand Hers at Calmont from the week of 24 October 2016 to 25 October 2026.
Table: The last 10 years, weekly averages
Week startingWeekly average of daily highs (m)
0.800 m
0.669 m
0.686 m
0.855 m
0.770 m
0.711 m
0.679 m
0.655 m
0.659 m
0.639 m
0.608 m
0.693 m
0.910 m
0.835 m
0.805 m
1.201 m
0.924 m
0.822 m
0.938 m
1.347 m
1.045 m
1.466 m
1.318 m
1.175 m
0.989 m
0.862 m
0.847 m
0.944 m
0.869 m
0.814 m
0.741 m
0.815 m
0.778 m
0.667 m
0.672 m
0.760 m
0.765 m
0.788 m
0.755 m
0.750 m
0.848 m
0.763 m
0.821 m
0.773 m
0.740 m
0.736 m
0.713 m
0.699 m
0.700 m
0.800 m
0.691 m
0.692 m
0.688 m
0.653 m
0.813 m
0.856 m
0.714 m
0.731 m
0.802 m
1.108 m
1.032 m
1.154 m
1.437 m
1.550 m
1.271 m
1.618 m
1.453 m
1.318 m
1.855 m
2.716 m
1.441 m
1.331 m
1.318 m
1.602 m
1.757 m
1.597 m
1.924 m
1.391 m
1.320 m
1.448 m
1.855 m
2.036 m
1.466 m
1.492 m
1.703 m
1.538 m
1.300 m
1.076 m
0.976 m
0.827 m
1.494 m
0.915 m
0.806 m
0.878 m
0.893 m
0.816 m
0.815 m
0.871 m
0.838 m
0.989 m
1.098 m
0.941 m
0.912 m
1.002 m
0.815 m
0.763 m
0.756 m
0.738 m
0.702 m
0.711 m
0.724 m
0.893 m
1.115 m
0.861 m
0.783 m
0.756 m
0.739 m
1.120 m
1.582 m
1.763 m
1.312 m
1.105 m
0.998 m
0.933 m
0.918 m
0.895 m
0.842 m
0.870 m
1.151 m
1.118 m
0.983 m
0.888 m
0.911 m
0.885 m
1.197 m
1.333 m
1.081 m
0.910 m
0.829 m
0.748 m
0.816 m
0.829 m
0.844 m
0.989 m
0.823 m
0.861 m
0.864 m
0.887 m
0.812 m
0.791 m
0.802 m
0.834 m
0.819 m
0.874 m
0.833 m
0.851 m
1.221 m
0.955 m
1.235 m
1.227 m
1.239 m
1.229 m
1.047 m
2.447 m
1.662 m
1.491 m
1.209 m
1.066 m
0.973 m
3.347 m
1.476 m
1.277 m
1.155 m
1.040 m
1.135 m
1.849 m
1.639 m
1.366 m
1.233 m
1.089 m
0.959 m
0.919 m
1.704 m
1.681 m
1.338 m
1.678 m
1.417 m
1.180 m
1.090 m
1.268 m
1.080 m
0.810 m
0.837 m
0.824 m
0.856 m
0.972 m
0.980 m
0.961 m
0.936 m
0.901 m
0.893 m
0.788 m
0.788 m
0.790 m
0.885 m
0.979 m
0.943 m
1.131 m
0.909 m
0.919 m
0.852 m
0.795 m
0.786 m
0.820 m
0.948 m
1.460 m
1.380 m
1.298 m
1.347 m
1.187 m
1.283 m
1.362 m
2.010 m
2.151 m
1.517 m
1.396 m
1.353 m
1.209 m
1.082 m
1.110 m
1.084 m
0.980 m
0.892 m
0.853 m
0.796 m
0.929 m
0.920 m
0.976 m
0.925 m
0.813 m
0.808 m
0.742 m
0.735 m
0.757 m
0.777 m
0.828 m
0.840 m
0.934 m
0.911 m
0.818 m
0.917 m
0.884 m
0.876 m
0.847 m
0.827 m
0.814 m
0.769 m
0.784 m
0.788 m
0.775 m
0.783 m
0.769 m
0.682 m
0.758 m
0.966 m
0.888 m
0.991 m
1.913 m
1.342 m
1.029 m
1.191 m
1.278 m
3.227 m
1.300 m
1.129 m
1.026 m
0.952 m
1.014 m
1.050 m
0.959 m
0.994 m
1.317 m
1.209 m
1.174 m
1.102 m
1.008 m
1.209 m
1.321 m
1.218 m
1.024 m
0.856 m
0.815 m
0.718 m
0.747 m
0.727 m
0.787 m
0.775 m
0.829 m
0.952 m
0.946 m
0.947 m
0.913 m
0.858 m
0.825 m
0.778 m
0.727 m
0.702 m
0.709 m
0.704 m
0.719 m
0.705 m
0.702 m
0.694 m
0.690 m
0.628 m
0.579 m
0.579 m
0.886 m
0.802 m
0.696 m
0.762 m
0.768 m
0.708 m
0.676 m
0.768 m
1.239 m
0.995 m
0.851 m
0.810 m
0.763 m
0.757 m
0.727 m
0.757 m
1.051 m
0.918 m
0.915 m
1.120 m
0.908 m
0.874 m
1.011 m
1.334 m
1.178 m
1.520 m
1.619 m
1.258 m
1.105 m
1.365 m
0.983 m
0.869 m
0.821 m
0.780 m
0.755 m
0.919 m
0.787 m
0.801 m
0.803 m
0.807 m
0.772 m
0.763 m
0.762 m
0.745 m
0.732 m
0.730 m
0.715 m
0.710 m
0.703 m
0.689 m
0.654 m
0.717 m
0.818 m
0.861 m
0.919 m
1.129 m
1.064 m
0.913 m
0.878 m
0.990 m
1.159 m
0.954 m
0.873 m
0.860 m
1.012 m
1.046 m
1.767 m
1.425 m
1.298 m
1.171 m
1.026 m
0.924 m
0.886 m
0.817 m
0.784 m
0.991 m
1.108 m
1.083 m
1.175 m
0.930 m
0.823 m
0.848 m
0.853 m
0.778 m
0.812 m
0.846 m
0.797 m
0.823 m
0.905 m
0.845 m
1.078 m
0.759 m
0.772 m
0.891 m
0.763 m
0.753 m
0.762 m
0.792 m
0.763 m
0.849 m
0.875 m
1.086 m
0.893 m
1.042 m
1.224 m
1.140 m
1.172 m
1.693 m
1.369 m
1.550 m
1.271 m
1.327 m
1.294 m
1.132 m
1.344 m
1.199 m
1.131 m
1.085 m
0.993 m
0.920 m
1.127 m
1.152 m
1.822 m
1.233 m
1.078 m
1.133 m
1.087 m
1.100 m
1.332 m
1.039 m
1.301 m
0.942 m
0.925 m
0.800 m
0.698 m
0.699 m
0.810 m
1.082 m
0.898 m
0.872 m
0.839 m
0.858 m
0.849 m
0.808 m
0.854 m
0.812 m
0.800 m
0.782 m
0.786 m
0.782 m
0.779 m
0.780 m
0.791 m
0.760 m
0.798 m
0.845 m
0.733 m
0.987 m
0.806 m
0.782 m
0.742 m
1.134 m
1.085 m
1.098 m
1.242 m
1.865 m
1.699 m
1.578 m
3.624 m
2.715 m
1.475 m
1.417 m
1.505 m
1.407 m
1.297 m
1.941 m
1.456 m
1.356 m
1.284 m
1.272 m
1.248 m
1.188 m
1.025 m
0.839 m
0.838 m
0.748 m
0.661 m
0.746 m
0.840 m
0.944 m
0.920 m
0.896 m
0.890 m
0.839 m
0.793 m
0.892 m
0.733 m
0.724 m
0.735 m
0.729 m
0.693 m
0.683 m
0.705 m
0.681 m
0.683 m

The whole record since 1996, weekly averages

The whole record since 1996, weekly averages 1 m 2 m 3 m Lowest 0.535 m 0.683 m
  • Level
  • Our record
Weekly averages of the Grand Hers at Calmont from 2 August 1996 to 25 October 2026.
Table: The whole record since 1996, weekly averages
Week startingWeekly average of daily highs (m)
no value
0.897 m
0.770 m
1.039 m
0.874 m
0.799 m
0.826 m
0.934 m
0.851 m
0.874 m
0.901 m
1.141 m
0.947 m
0.821 m
0.780 m
0.823 m
1.410 m
2.756 m
2.774 m
3.046 m
1.567 m
1.476 m
1.457 m
1.791 m
1.546 m
1.449 m
1.340 m
1.321 m
1.427 m
1.397 m
1.250 m
1.199 m
1.137 m
1.091 m
1.111 m
0.940 m
0.809 m
0.753 m
0.736 m
0.909 m
0.925 m
0.960 m
0.837 m
0.811 m
0.966 m
0.780 m
0.777 m
0.782 m
0.787 m
0.867 m
0.810 m
0.854 m
0.776 m
0.868 m
1.008 m
0.852 m
1.045 m
0.829 m
0.837 m
0.817 m
0.810 m
0.821 m
0.827 m
0.819 m
0.800 m
0.765 m
0.706 m
0.706 m
0.756 m
0.718 m
0.835 m
0.909 m
0.882 m
0.979 m
0.969 m
1.017 m
0.952 m
1.219 m
0.955 m
0.950 m
0.844 m
0.815 m
0.923 m
0.812 m
1.319 m
1.045 m
0.922 m
0.950 m
1.038 m
1.184 m
1.035 m
1.459 m
1.415 m
1.105 m
0.899 m
0.868 m
0.764 m
0.811 m
0.769 m
0.638 m
0.706 m
0.812 m
0.805 m
0.836 m
0.909 m
0.899 m
0.889 m
0.851 m
0.801 m
0.856 m
0.810 m
0.999 m
0.765 m
0.791 m
1.071 m
1.202 m
1.104 m
1.042 m
0.883 m
1.005 m
0.990 m
1.228 m
1.494 m
1.238 m
1.166 m
1.390 m
1.159 m
1.085 m
1.374 m
1.446 m
1.418 m
1.321 m
1.275 m
1.313 m
1.456 m
1.408 m
1.302 m
1.158 m
1.188 m
1.191 m
1.076 m
1.273 m
1.389 m
1.641 m
1.696 m
1.345 m
1.673 m
1.397 m
1.223 m
1.125 m
0.976 m
0.887 m
0.817 m
0.821 m
0.877 m
0.892 m
1.153 m
1.868 m
1.020 m
0.928 m
1.120 m
1.061 m
1.010 m
1.069 m
1.062 m
0.924 m
0.944 m
0.887 m
0.946 m
0.858 m
0.906 m
1.159 m
1.294 m
1.242 m
1.027 m
1.105 m
1.340 m
1.523 m
1.604 m
1.374 m
1.327 m
1.173 m
1.022 m
1.042 m
1.056 m
2.727 m
1.584 m
1.382 m
1.271 m
1.106 m
1.036 m
1.438 m
1.170 m
1.335 m
1.300 m
1.367 m
1.201 m
1.214 m
0.989 m
1.040 m
1.002 m
2.350 m
2.491 m
1.516 m
1.194 m
0.904 m
0.995 m
1.017 m
0.890 m
1.013 m
1.105 m
0.874 m
0.884 m
0.888 m
0.838 m
0.860 m
0.850 m
0.818 m
0.844 m
1.091 m
1.220 m
0.928 m
0.881 m
0.875 m
0.883 m
1.064 m
1.277 m
1.128 m
1.020 m
0.924 m
1.006 m
1.281 m
1.358 m
1.444 m
1.314 m
2.590 m
1.449 m
1.466 m
1.288 m
1.187 m
1.255 m
1.527 m
1.283 m
1.448 m
1.459 m
1.766 m
1.371 m
1.337 m
1.406 m
1.460 m
1.286 m
1.186 m
1.068 m
0.976 m
1.012 m
0.799 m
0.733 m
0.875 m
0.861 m
0.923 m
0.855 m
0.876 m
0.918 m
0.893 m
0.848 m
0.878 m
0.850 m
0.931 m
1.205 m
1.046 m
0.960 m
0.793 m
0.810 m
0.810 m
0.753 m
0.639 m
0.947 m
0.816 m
0.733 m
0.738 m
0.712 m
0.684 m
0.659 m
0.684 m
0.682 m
0.915 m
0.808 m
0.769 m
0.987 m
0.970 m
1.155 m
1.216 m
1.321 m
1.145 m
1.024 m
0.922 m
1.148 m
1.312 m
1.190 m
1.015 m
1.052 m
1.479 m
1.339 m
1.180 m
1.019 m
1.401 m
1.338 m
1.038 m
0.834 m
0.797 m
0.880 m
1.134 m
0.913 m
1.077 m
0.999 m
0.937 m
0.863 m
0.954 m
1.013 m
0.945 m
0.944 m
0.927 m
0.897 m
1.028 m
0.994 m
0.907 m
0.832 m
1.290 m
1.248 m
0.924 m
1.013 m
1.901 m
1.389 m
1.228 m
1.198 m
1.343 m
1.393 m
1.282 m
1.297 m
1.670 m
2.758 m
1.455 m
1.351 m
1.394 m
2.061 m
1.389 m
1.263 m
1.214 m
1.300 m
1.319 m
1.273 m
1.181 m
1.079 m
1.049 m
0.979 m
1.077 m
1.589 m
1.234 m
0.965 m
0.914 m
0.790 m
0.806 m
0.808 m
0.844 m
0.879 m
0.851 m
0.911 m
0.911 m
0.906 m
0.809 m
0.766 m
0.875 m
0.742 m
0.793 m
0.770 m
0.815 m
0.756 m
0.773 m
0.766 m
0.695 m
0.651 m
0.646 m
0.653 m
0.983 m
0.752 m
0.828 m
1.157 m
1.494 m
2.162 m
1.634 m
2.778 m
2.016 m
1.448 m
1.284 m
1.219 m
1.179 m
1.224 m
1.328 m
1.304 m
1.321 m
1.237 m
1.149 m
1.274 m
1.979 m
1.709 m
2.337 m
1.651 m
1.423 m
1.281 m
1.195 m
0.964 m
0.839 m
0.782 m
0.806 m
0.871 m
0.856 m
0.864 m
0.862 m
1.006 m
0.885 m
0.954 m
0.870 m
0.869 m
0.896 m
0.991 m
0.913 m
0.959 m
0.815 m
0.906 m
0.773 m
0.861 m
0.749 m
1.119 m
0.930 m
0.823 m
0.898 m
1.289 m
1.225 m
1.396 m
1.326 m
1.280 m
1.093 m
1.466 m
1.411 m
1.366 m
1.256 m
1.398 m
1.374 m
1.244 m
1.251 m
1.331 m
1.291 m
1.327 m
1.165 m
1.245 m
1.379 m
1.300 m
1.268 m
1.274 m
1.674 m
1.298 m
1.179 m
1.025 m
0.904 m
0.703 m
0.745 m
0.837 m
0.819 m
0.839 m
0.904 m
0.864 m
0.933 m
0.864 m
0.856 m
0.831 m
0.969 m
0.879 m
0.814 m
0.844 m
0.855 m
0.904 m
0.810 m
0.802 m
0.749 m
0.714 m
1.286 m
1.066 m
1.072 m
1.282 m
1.171 m
1.059 m
0.933 m
1.340 m
1.089 m
1.022 m
0.996 m
1.575 m
1.277 m
1.151 m
1.050 m
0.928 m
1.952 m
1.539 m
1.209 m
1.110 m
0.957 m
0.820 m
0.794 m
0.791 m
0.943 m
0.891 m
0.775 m
0.721 m
0.693 m
0.649 m
0.607 m
0.742 m
0.898 m
0.813 m
0.889 m
0.870 m
0.884 m
0.876 m
0.907 m
0.879 m
0.876 m
0.788 m
0.767 m
0.870 m
0.880 m
0.812 m
0.778 m
0.918 m
0.801 m
0.769 m
0.714 m
0.636 m
0.632 m
0.805 m
0.722 m
0.717 m
0.756 m
0.725 m
0.663 m
0.657 m
0.656 m
0.646 m
0.652 m
0.635 m
0.661 m
0.951 m
1.033 m
1.244 m
1.079 m
0.936 m
1.173 m
1.277 m
1.314 m
1.262 m
1.676 m
1.157 m
1.660 m
1.400 m
1.131 m
0.985 m
1.309 m
1.179 m
1.197 m
0.838 m
0.743 m
0.801 m
0.833 m
0.898 m
0.906 m
0.969 m
0.946 m
0.915 m
0.974 m
0.841 m
0.860 m
0.803 m
0.818 m
0.827 m
0.891 m
1.034 m
0.802 m
0.794 m
0.769 m
0.692 m
0.686 m
0.686 m
0.661 m
0.878 m
1.234 m
0.876 m
0.812 m
0.821 m
0.857 m
1.271 m
1.201 m
0.963 m
0.899 m
0.845 m
0.788 m
0.817 m
0.806 m
0.888 m
0.879 m
1.493 m
1.576 m
1.236 m
1.156 m
1.209 m
1.040 m
0.904 m
0.870 m
0.881 m
0.982 m
1.300 m
1.421 m
1.104 m
0.845 m
0.801 m
0.864 m
0.857 m
0.832 m
0.911 m
0.986 m
1.015 m
0.948 m
0.906 m
0.901 m
0.869 m
0.860 m
0.818 m
0.826 m
0.829 m
0.817 m
0.826 m
0.844 m
1.134 m
1.159 m
1.026 m
1.460 m
1.296 m
1.320 m
1.617 m
1.304 m
1.316 m
1.194 m
1.160 m
2.031 m
1.897 m
1.516 m
1.799 m
1.431 m
1.246 m
1.244 m
1.217 m
1.126 m
1.026 m
1.111 m
1.510 m
1.566 m
1.873 m
1.996 m
1.537 m
1.440 m
1.304 m
1.201 m
1.059 m
1.008 m
0.879 m
0.761 m
0.798 m
0.811 m
0.842 m
0.826 m
0.957 m
0.926 m
0.960 m
0.965 m
0.899 m
0.831 m
0.802 m
1.004 m
0.940 m
1.067 m
0.969 m
0.792 m
0.787 m
0.792 m
0.730 m
0.994 m
0.800 m
0.716 m
0.863 m
0.824 m
0.750 m
0.731 m
0.784 m
0.765 m
1.266 m
1.406 m
1.190 m
1.139 m
1.226 m
1.324 m
1.217 m
1.117 m
1.130 m
1.223 m
1.277 m
1.156 m
1.417 m
1.216 m
1.071 m
0.976 m
2.268 m
1.426 m
1.213 m
1.123 m
0.976 m
0.880 m
1.221 m
1.057 m
0.846 m
0.832 m
0.815 m
0.867 m
0.834 m
0.905 m
0.929 m
0.890 m
0.937 m
0.884 m
0.859 m
0.820 m
0.804 m
0.832 m
0.934 m
1.338 m
0.807 m
0.792 m
1.095 m
0.862 m
0.959 m
1.256 m
0.997 m
0.902 m
0.825 m
0.802 m
0.780 m
0.766 m
0.929 m
0.849 m
0.807 m
0.772 m
0.759 m
0.853 m
1.523 m
1.300 m
1.087 m
1.340 m
1.097 m
1.174 m
1.084 m
0.970 m
0.921 m
0.939 m
0.800 m
0.738 m
0.698 m
0.703 m
1.001 m
1.123 m
0.885 m
0.816 m
0.729 m
0.738 m
0.830 m
0.790 m
1.212 m
0.883 m
0.822 m
0.818 m
0.835 m
0.941 m
1.013 m
0.817 m
0.829 m
1.032 m
1.008 m
0.810 m
0.803 m
0.821 m
0.863 m
1.510 m
0.875 m
0.810 m
0.776 m
0.783 m
0.854 m
1.258 m
1.055 m
1.224 m
1.040 m
0.893 m
0.824 m
0.921 m
0.936 m
1.050 m
1.126 m
0.992 m
0.915 m
0.873 m
0.930 m
0.909 m
0.915 m
1.053 m
1.643 m
1.400 m
1.241 m
1.066 m
0.922 m
1.704 m
1.163 m
1.030 m
1.056 m
0.929 m
0.805 m
0.864 m
0.823 m
0.858 m
0.958 m
0.965 m
0.913 m
0.949 m
0.944 m
0.869 m
0.831 m
0.814 m
0.814 m
0.830 m
0.907 m
1.023 m
0.808 m
0.821 m
0.832 m
0.788 m
0.753 m
0.753 m
0.942 m
1.358 m
1.166 m
1.006 m
0.995 m
1.154 m
1.009 m
2.149 m
1.801 m
1.805 m
1.511 m
1.570 m
1.483 m
1.499 m
1.451 m
1.423 m
1.323 m
1.344 m
1.614 m
1.499 m
1.426 m
1.329 m
1.530 m
1.459 m
1.377 m
1.440 m
2.544 m
1.656 m
1.480 m
1.349 m
1.207 m
1.061 m
0.886 m
0.874 m
0.936 m
0.885 m
0.958 m
0.888 m
0.900 m
0.900 m
0.928 m
0.848 m
0.843 m
0.778 m
0.797 m
0.813 m
0.802 m
0.799 m
0.778 m
1.060 m
1.477 m
3.078 m
1.560 m
1.364 m
1.253 m
1.260 m
1.284 m
1.286 m
1.343 m
1.374 m
2.977 m
2.139 m
1.833 m
1.616 m
1.490 m
1.509 m
1.841 m
1.414 m
1.310 m
1.396 m
1.867 m
1.576 m
1.430 m
1.444 m
1.697 m
1.479 m
1.375 m
1.225 m
1.267 m
1.270 m
1.353 m
1.197 m
1.057 m
0.969 m
1.114 m
0.928 m
1.003 m
1.189 m
1.104 m
1.226 m
0.855 m
0.836 m
0.854 m
0.832 m
0.812 m
0.799 m
0.859 m
0.857 m
0.797 m
0.787 m
0.793 m
0.747 m
0.854 m
0.874 m
0.901 m
1.202 m
1.271 m
1.221 m
1.296 m
1.380 m
1.125 m
1.060 m
0.957 m
1.392 m
1.466 m
1.325 m
1.500 m
2.468 m
1.967 m
1.451 m
1.390 m
1.506 m
1.471 m
1.280 m
1.286 m
1.338 m
1.498 m
1.273 m
1.147 m
1.081 m
0.930 m
0.852 m
0.989 m
0.954 m
0.722 m
0.754 m
0.821 m
0.871 m
0.843 m
0.934 m
0.839 m
0.844 m
0.816 m
0.822 m
0.830 m
0.793 m
0.791 m
0.783 m
0.801 m
0.816 m
0.796 m
0.783 m
0.782 m
0.706 m
0.630 m
0.652 m
1.200 m
0.901 m
0.794 m
0.740 m
no value
no value
no value
no value
1.018 m
0.888 m
0.866 m
1.592 m
1.379 m
1.182 m
1.421 m
1.476 m
1.298 m
1.186 m
1.155 m
1.266 m
1.262 m
1.210 m
1.281 m
1.029 m
1.071 m
1.039 m
1.020 m
0.927 m
0.867 m
0.863 m
0.825 m
0.745 m
0.802 m
0.814 m
0.849 m
0.848 m
0.913 m
0.902 m
0.903 m
0.873 m
0.845 m
0.807 m
0.792 m
0.781 m
0.783 m
0.786 m
0.790 m
0.780 m
0.800 m
0.669 m
0.686 m
0.855 m
0.770 m
0.711 m
0.679 m
0.655 m
0.659 m
0.639 m
0.608 m
0.693 m
0.910 m
0.835 m
0.805 m
1.201 m
0.924 m
0.822 m
0.938 m
1.347 m
1.045 m
1.466 m
1.318 m
1.175 m
0.989 m
0.862 m
0.847 m
0.944 m
0.869 m
0.814 m
0.741 m
0.815 m
0.778 m
0.667 m
0.672 m
0.760 m
0.765 m
0.788 m
0.755 m
0.750 m
0.848 m
0.763 m
0.821 m
0.773 m
0.740 m
0.736 m
0.713 m
0.699 m
0.700 m
0.800 m
0.691 m
0.692 m
0.688 m
0.653 m
0.813 m
0.856 m
0.714 m
0.731 m
0.802 m
1.108 m
1.032 m
1.154 m
1.437 m
1.550 m
1.271 m
1.618 m
1.453 m
1.318 m
1.855 m
2.716 m
1.441 m
1.331 m
1.318 m
1.602 m
1.757 m
1.597 m
1.924 m
1.391 m
1.320 m
1.448 m
1.855 m
2.036 m
1.466 m
1.492 m
1.703 m
1.538 m
1.300 m
1.076 m
0.976 m
0.827 m
1.494 m
0.915 m
0.806 m
0.878 m
0.893 m
0.816 m
0.815 m
0.871 m
0.838 m
0.989 m
1.098 m
0.941 m
0.912 m
1.002 m
0.815 m
0.763 m
0.756 m
0.738 m
0.702 m
0.711 m
0.724 m
0.893 m
1.115 m
0.861 m
0.783 m
0.756 m
0.739 m
1.120 m
1.582 m
1.763 m
1.312 m
1.105 m
0.998 m
0.933 m
0.918 m
0.895 m
0.842 m
0.870 m
1.151 m
1.118 m
0.983 m
0.888 m
0.911 m
0.885 m
1.197 m
1.333 m
1.081 m
0.910 m
0.829 m
0.748 m
0.816 m
0.829 m
0.844 m
0.989 m
0.823 m
0.861 m
0.864 m
0.887 m
0.812 m
0.791 m
0.802 m
0.834 m
0.819 m
0.874 m
0.833 m
0.851 m
1.221 m
0.955 m
1.235 m
1.227 m
1.239 m
1.229 m
1.047 m
2.447 m
1.662 m
1.491 m
1.209 m
1.066 m
0.973 m
3.347 m
1.476 m
1.277 m
1.155 m
1.040 m
1.135 m
1.849 m
1.639 m
1.366 m
1.233 m
1.089 m
0.959 m
0.919 m
1.704 m
1.681 m
1.338 m
1.678 m
1.417 m
1.180 m
1.090 m
1.268 m
1.080 m
0.810 m
0.837 m
0.824 m
0.856 m
0.972 m
0.980 m
0.961 m
0.936 m
0.901 m
0.893 m
0.788 m
0.788 m
0.790 m
0.885 m
0.979 m
0.943 m
1.131 m
0.909 m
0.919 m
0.852 m
0.795 m
0.786 m
0.820 m
0.948 m
1.460 m
1.380 m
1.298 m
1.347 m
1.187 m
1.283 m
1.362 m
2.010 m
2.151 m
1.517 m
1.396 m
1.353 m
1.209 m
1.082 m
1.110 m
1.084 m
0.980 m
0.892 m
0.853 m
0.796 m
0.929 m
0.920 m
0.976 m
0.925 m
0.813 m
0.808 m
0.742 m
0.735 m
0.757 m
0.777 m
0.828 m
0.840 m
0.934 m
0.911 m
0.818 m
0.917 m
0.884 m
0.876 m
0.847 m
0.827 m
0.814 m
0.769 m
0.784 m
0.788 m
0.775 m
0.783 m
0.769 m
0.682 m
0.758 m
0.966 m
0.888 m
0.991 m
1.913 m
1.342 m
1.029 m
1.191 m
1.278 m
3.227 m
1.300 m
1.129 m
1.026 m
0.952 m
1.014 m
1.050 m
0.959 m
0.994 m
1.317 m
1.209 m
1.174 m
1.102 m
1.008 m
1.209 m
1.321 m
1.218 m
1.024 m
0.856 m
0.815 m
0.718 m
0.747 m
0.727 m
0.787 m
0.775 m
0.829 m
0.952 m
0.946 m
0.947 m
0.913 m
0.858 m
0.825 m
0.778 m
0.727 m
0.702 m
0.709 m
0.704 m
0.719 m
0.705 m
0.702 m
0.694 m
0.690 m
0.628 m
0.579 m
0.579 m
0.886 m
0.802 m
0.696 m
0.762 m
0.768 m
0.708 m
0.676 m
0.768 m
1.239 m
0.995 m
0.851 m
0.810 m
0.763 m
0.757 m
0.727 m
0.757 m
1.051 m
0.918 m
0.915 m
1.120 m
0.908 m
0.874 m
1.011 m
1.334 m
1.178 m
1.520 m
1.619 m
1.258 m
1.105 m
1.365 m
0.983 m
0.869 m
0.821 m
0.780 m
0.755 m
0.919 m
0.787 m
0.801 m
0.803 m
0.807 m
0.772 m
0.763 m
0.762 m
0.745 m
0.732 m
0.730 m
0.715 m
0.710 m
0.703 m
0.689 m
0.654 m
0.717 m
0.818 m
0.861 m
0.919 m
1.129 m
1.064 m
0.913 m
0.878 m
0.990 m
1.159 m
0.954 m
0.873 m
0.860 m
1.012 m
1.046 m
1.767 m
1.425 m
1.298 m
1.171 m
1.026 m
0.924 m
0.886 m
0.817 m
0.784 m
0.991 m
1.108 m
1.083 m
1.175 m
0.930 m
0.823 m
0.848 m
0.853 m
0.778 m
0.812 m
0.846 m
0.797 m
0.823 m
0.905 m
0.845 m
1.078 m
0.759 m
0.772 m
0.891 m
0.763 m
0.753 m
0.762 m
0.792 m
0.763 m
0.849 m
0.875 m
1.086 m
0.893 m
1.042 m
1.224 m
1.140 m
1.172 m
1.693 m
1.369 m
1.550 m
1.271 m
1.327 m
1.294 m
1.132 m
1.344 m
1.199 m
1.131 m
1.085 m
0.993 m
0.920 m
1.127 m
1.152 m
1.822 m
1.233 m
1.078 m
1.133 m
1.087 m
1.100 m
1.332 m
1.039 m
1.301 m
0.942 m
0.925 m
0.800 m
0.698 m
0.699 m
0.810 m
1.082 m
0.898 m
0.872 m
0.839 m
0.858 m
0.849 m
0.808 m
0.854 m
0.812 m
0.800 m
0.782 m
0.786 m
0.782 m
0.779 m
0.780 m
0.791 m
0.760 m
0.798 m
0.845 m
0.733 m
0.987 m
0.806 m
0.782 m
0.742 m
1.134 m
1.085 m
1.098 m
1.242 m
1.865 m
1.699 m
1.578 m
3.624 m
2.715 m
1.475 m
1.417 m
1.505 m
1.407 m
1.297 m
1.941 m
1.456 m
1.356 m
1.284 m
1.272 m
1.248 m
1.188 m
1.025 m
0.839 m
0.838 m
0.748 m
0.661 m
0.746 m
0.840 m
0.944 m
0.920 m
0.896 m
0.890 m
0.839 m
0.793 m
0.892 m
0.733 m
0.724 m
0.735 m
0.729 m
0.693 m
0.683 m
0.705 m
0.681 m
0.683 m

How this compares

  • The daily high on 25 October 2026 was 0.681 m, the lowest for 25 October in 31 years of record (1996 to 2026). The next lowest was 0.70 m in 2022. The newest value is provisional.
  • That is 0.10 m below the median of 0.78 m for 25 October over the last 10 years. The newest value is provisional.
  • So far in 2026 the daily high was below the normal range on 76 of 298 days, the fifth most of the 31 years since 1996.

Same date in past years

25 October in the last 10 years

DayLevelAgainst the normal range for the date
0.778 m
0.851 m
0.711 m
0.695 m
0.768 m
0.885 m
1.355 m
0.799 m
0.703 m
0.79 m

Year by year

The lowest and highest daily high of each year

The lowest and highest daily high of each year 2 m 4 m 6 m Lowest 0.535 m, 1998 Highest 7.352 m, 2020
  • Each year, lowest to highest
  • The year so far
  • Lowest in our series
  • Highest in our series
The lowest and highest daily high of the Grand Hers at Calmont in each year from 1997 to 2025 with a value on at least 300 days, and in 2026 so far. The lowest daily high in our series since 2 August 1996 was 0.535 m, on 26 June 1998. The highest was 7.352 m, on 23 January 2020, a provisional value.
Table: The lowest and highest daily high of each year
YearLowest daily high (m)DayHighest daily high (m)DayDays with a value
0.635 m2.13 m365
0.535 m2.005 m365
0.692 m4.101 m365
0.789 m6.133 m366
0.613 m3.478 m365
0.66 m2.43 m365
0.63 m5.28 m365
0.665 m5.33 m366
0.635 m2.63 m365
0.57 m3.30 m365
0.633 m2.27 m365
0.735 m2.05 m366
0.647 m3.70 m365
0.753 m3.67 m365
0.666 m2.60 m365
0.728 m2.52 m366
0.724 m5.08 m365
provisional0.69 m6.23 m364
provisional0.611 m3.786 m352
provisional0.598 m2.701 m351
provisional0.591 m2.834 m365
provisional0.689 m4.547 m365
provisional0.705 m4.573 m365
provisional0.748 m7.352 m366
provisional0.648 m3.415 m365
0.567 m6.773 m365
0.639 m2.87 m365
0.702 m2.861 m366
provisional0.621 m2.943 m365
so far, provisional0.608 m5.095 m298

Each year from January to December, weekly averages of daily highs

Each year from January to December, weekly averages of daily highs 1 m 2 m 3 m 4 m 1998, lowest day 2020, 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 daily highs of the Grand Hers at Calmont in each year from 1997 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 high in our series since 2 August 1996 was in 1998, the highest in 2020. 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 of daily highs
Week so far Weekly average of daily highs (m), lowest day Weekly average of daily highs (m), highest day Weekly average of daily highs (m)Normal range (m)
to 0.926 m1.007 m1.169 m0.684 m to 1.440 m
to 1.306 m0.947 m1.019 m0.702 m to 1.513 m
to 1.537 m1.096 m0.965 m0.765 m to 1.644 m
to 1.725 m1.091 m3.525 m0.810 m to 1.876 m
to 1.723 m0.941 m1.410 m0.808 m to 1.854 m
to 2.227 m0.915 m1.230 m0.807 m to 1.682 m
to 3.850 m0.811 m1.123 m0.812 m to 1.625 m
to 1.736 m0.866 m1.015 m0.822 m to 1.566 m
to 1.394 m0.874 m1.312 m0.825 m to 1.617 m
to 1.458 m0.938 m1.920 m0.897 m to 1.618 m
to 1.519 m1.330 m1.517 m0.908 m to 1.495 m
to 1.343 m0.961 m1.324 m0.914 m to 1.448 m
to 1.268 m0.932 m1.197 m0.919 m to 1.518 m
to 2.047 m0.956 m1.039 m0.897 m to 1.557 m
to 1.417 m1.140 m0.946 m0.872 m to 1.550 m
to 1.305 m1.121 m1.101 m0.813 m to 1.517 m
to 1.289 m1.227 m1.757 m0.818 m to 1.595 m
to 1.236 m1.488 m1.580 m0.866 m to 1.696 m
to 1.251 m1.243 m1.452 m0.866 m to 1.684 m
to 1.152 m1.009 m1.608 m0.822 m to 1.552 m
to 0.906 m0.854 m1.329 m0.761 m to 1.500 m
to 0.822 m0.844 m1.117 m0.746 m to 1.440 m
to 0.820 m0.764 m1.175 m0.760 m to 1.458 m
to 0.684 m0.809 m1.220 m0.730 m to 1.442 m
to 0.695 m0.739 m1.006 m0.698 m to 1.295 m
to 0.813 m0.594 m0.766 m0.709 m to 1.069 m
to 0.866 m0.790 m0.851 m0.735 m to 0.953 m
to 0.945 m0.812 m0.825 m0.776 m to 0.976 m
to 0.896 m0.826 m0.908 m0.778 m to 0.991 m
to 0.899 m0.842 m0.973 m0.786 m to 1.047 m
to 0.890 m0.954 m0.970 m0.793 m to 1.121 m
to 0.789 m0.845 m0.960 m0.791 m to 1.060 m
to 0.792 m0.933 m0.921 m0.786 m to 1.019 m
to 0.878 m0.766 m0.892 m0.780 m to 0.990 m
to 0.722 m0.844 m0.875 m0.760 m to 0.971 m
to 0.733 m0.836 m0.790 m0.757 m to 0.939 m
to 0.734 m0.941 m0.781 m0.754 m to 0.970 m
to 0.720 m0.859 m0.797 m0.745 m to 1.035 m
to 0.680 m0.769 m0.987 m0.745 m to 1.053 m
to 0.695 m0.836 m0.911 m0.759 m to 1.040 m
to 0.695 m1.244 m0.989 m0.745 m to 1.070 m
to 0.683 m1.144 m1.088 m0.743 m to 1.070 m
to no value1.069 m0.916 m0.746 m to 0.950 m
to no value0.964 m0.887 m0.665 m to 0.955 m
to no value0.869 m0.843 m0.640 m to 1.230 m
to no value1.097 m0.797 m0.645 m to 1.291 m
to no value0.891 m0.772 m0.666 m to 1.350 m
to no value1.591 m0.900 m0.701 m to 1.438 m
to no value1.300 m0.918 m0.710 m to 1.510 m
to no value1.225 m1.639 m0.713 m to 1.571 m
to no value1.308 m1.290 m0.714 m to 1.529 m
to no value1.234 m1.340 m0.688 m to 1.479 m
Every year
YearDays with a valueDays below the normal range
to 29876
36515
36637
365104
365103
36525
3662
36539
36514
365156
35140
35219
3640
3652
36618
36565
3654
3657
36630
36566
36599
3657
3660
36526
36526
36523
3660
3656
36540
36548
1527

How it compares

That is below the normal range for the date, in the lowest 5 percent of the daily highs of these dates in the 30 years between 1996 and 2025.

Records

  • Highest daily high in our series since 2 August 1996: 7.352 m on 23 January 2020. Provisional data.
  • Lowest daily high in our series since 2 August 1996: 0.535 m on 26 June 1998.

Also on this water

About this gauge

Calmont is a gauge on the Grand Hers in Haute-Garonne, France.

It lies at 43.2925° N, 1.5954° E.

Its readings come from France's national network of river gauges (Vigicrues and its partners), through Hub'Eau.

Hub'Eau's daily highs for this gauge go back to 2 August 1996.

Hub'Eau's newest readings are mostly raw data that the gauge's operator checks and validates later.

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

About these figures

The normal range for 25 October is 0.75 m to 0.95 m: the 10th to 90th percentile of the daily highs from 18 October to 1 November in 30 years between 1996 and 2025.

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Sources