World Water LevelsWater, in perspective
Menu

Altawan Reservoir water level at Govenlock today

Is the Altawan Reservoir at Govenlock within its normal range for the date?

The Altawan Reservoir at Govenlock read 897.789 m at .

Level now

within the normal range for the date

897.789 m

Provisional

within the normal range for the date

897.789 mNormal for the date891.72 m to 898.76 mHighest 901.322 mLowest 889.284 mMedian 897.12 m
The normal range for 26 October is 891.72 m to 898.76 m: the 10th to 90th percentile of the daily averages from 19 October to 2 November in 57 years between 1967 and 2025.
Table: where the water stands
LevelValue
Newest reading897.789 m,
Normal range for the date891.72 m to 898.76 m
Median for the date897.12 m
Highest in our series901.322 m
Lowest in our series889.284 m
Past day
-0.002 m
Past week
-0.013 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 Altawan Reservoir at Govenlock averaged 897.791 m.

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

The last 90 days, against the normal range for each day 890 m 895 m 900 m Highest 901.322 m Lowest 889.284 m 897.791 m
  • Level
  • Normal range for the date
  • Median for the date
  • A year earlier
  • Our record
Daily averages of the Altawan Reservoir at Govenlock 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 value892.119 m to 899.324 m898.086 m898.732 m
no value892.106 m to 899.303 m898.078 m898.669 m
no value892.096 m to 899.289 m898.052 m898.610 m
no value892.059 m to 899.274 m898.023 m898.562 m
no value892.023 m to 899.261 m897.979 m898.561 m
no value891.875 m to 899.255 m897.902 m898.562 m
no value891.872 m to 899.252 m897.841 m898.558 m
no value891.872 m to 899.249 m897.794 m898.560 m
no value891.867 m to 899.243 m897.743 m898.578 m
no value891.702 m to 899.209 m897.697 m898.575 m
no value891.334 m to 899.146 m897.673 m898.571 m
no value891.140 m to 899.081 m897.630 m898.574 m
no value891.140 m to 899.017 m897.601 m898.593 m
no value891.140 m to 898.963 m897.593 m898.586 m
no value891.142 m to 898.917 m897.576 m898.585 m
no value891.141 m to 898.926 m897.546 m898.577 m
no value891.145 m to 898.881 m897.535 m898.573 m
no value891.146 m to 898.863 m897.517 m898.567 m
no value891.146 m to 898.860 m897.502 m898.560 m
no value891.146 m to 898.851 m897.477 m898.557 m
no value891.146 m to 898.840 m897.437 m898.555 m
no value891.146 m to 898.836 m897.391 m898.549 m
no value891.146 m to 898.831 m897.366 m898.545 m
no value891.146 m to 898.826 m897.361 m898.545 m
no value891.146 m to 898.820 m897.354 m898.538 m
no value891.146 m to 898.813 m897.343 m898.532 m
no value891.146 m to 898.806 m897.326 m898.524 m
no value891.146 m to 898.801 m897.291 m898.517 m
no value891.145 m to 898.800 m897.289 m898.511 m
no value891.142 m to 898.800 m897.289 m898.506 m
no value891.143 m to 898.800 m897.327 m898.501 m
no value891.140 m to 898.809 m897.319 m898.495 m
no value891.138 m to 898.809 m897.311 m898.494 m
no value891.138 m to 898.832 m897.305 m898.496 m
no value891.138 m to 898.860 m897.301 m898.494 m
no value891.136 m to 898.877 m897.295 m898.489 m
no value891.135 m to 898.880 m897.290 m898.485 m
no value891.134 m to 898.880 m897.286 m898.479 m
no value891.133 m to 898.876 m897.279 m898.478 m
no value891.133 m to 898.873 m897.275 m898.464 m
no value891.133 m to 898.872 m897.271 m898.458 m
no value891.133 m to 898.870 m897.269 m898.453 m
no value891.133 m to 898.867 m897.264 m898.450 m
no value891.133 m to 898.864 m897.258 m898.444 m
no value891.134 m to 898.862 m897.252 m898.442 m
897.909 m891.132 m to 898.860 m897.246 m898.440 m
897.902 m891.131 m to 898.859 m897.243 m898.441 m
897.897 m891.127 m to 898.857 m897.240 m898.443 m
897.900 m891.124 m to 898.854 m897.240 m898.440 m
897.895 m891.122 m to 898.850 m897.237 m898.437 m
897.896 m891.120 m to 898.848 m897.234 m898.433 m
897.894 m891.116 m to 898.847 m897.228 m898.428 m
897.893 m891.115 m to 898.847 m897.225 m898.424 m
897.890 m891.113 m to 898.847 m897.221 m898.421 m
897.887 m891.112 m to 898.847 m897.218 m898.417 m
897.884 m891.112 m to 898.847 m897.215 m898.414 m
897.882 m891.109 m to 898.847 m897.211 m898.408 m
897.881 m891.116 m to 898.847 m897.209 m898.401 m
897.877 m891.133 m to 898.847 m897.209 m898.398 m
897.874 m891.146 m to 898.847 m897.207 m898.392 m
897.866 m891.169 m to 898.847 m897.207 m898.389 m
897.859 m891.402 m to 898.847 m897.206 m898.382 m
897.856 m891.742 m to 898.847 m897.204 m898.379 m
897.853 m891.756 m to 898.966 m897.229 m898.374 m
897.849 m891.753 m to 898.979 m897.219 m898.371 m
897.844 m891.750 m to 898.979 m897.202 m898.367 m
897.841 m891.750 m to 898.979 m897.198 m898.362 m
897.838 m891.747 m to 898.974 m897.194 m898.362 m
897.834 m891.747 m to 898.971 m897.189 m898.361 m
897.832 m891.747 m to 898.968 m897.181 m898.358 m
897.827 m891.747 m to 898.965 m897.174 m898.351 m
897.824 m891.747 m to 898.963 m897.169 m898.348 m
897.821 m891.747 m to 898.962 m897.164 m898.346 m
897.819 m891.745 m to 898.962 m897.159 m898.343 m
897.817 m891.744 m to 898.960 m897.154 m898.339 m
897.816 m891.744 m to 898.960 m897.154 m898.338 m
897.820 m891.744 m to 898.957 m897.148 m898.341 m
897.818 m891.744 m to 898.956 m897.146 m898.327 m
897.818 m891.741 m to 898.950 m897.142 m898.323 m
897.815 m891.741 m to 898.950 m897.141 m898.321 m
897.810 m891.738 m to 898.949 m897.140 m898.321 m
897.808 m891.735 m to 898.949 m897.139 m898.320 m
897.805 m891.735 m to 898.949 m897.137 m898.316 m
897.803 m891.730 m to 898.947 m897.136 m898.314 m
897.802 m891.726 m to 898.947 m897.134 m898.315 m
897.801 m891.723 m to 898.945 m897.133 m898.309 m
897.800 m891.723 m to 898.944 m897.132 m898.305 m
897.809 m891.720 m to 898.943 m897.129 m898.304 m
897.795 m891.719 m to 898.943 m897.127 m898.301 m
897.791 m891.720 m to 898.943 m897.127 m898.301 m

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

The last 12 months, against the normal range for each day 890 m 895 m 900 m Highest 901.322 m Lowest 889.284 m 897.791 m
  • Level
  • Normal range for the date
  • Median for the date
  • Our record
Daily averages of the Altawan Reservoir at Govenlock 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
898.301 m891.720 m to 898.943 m897.127 m
898.297 m891.720 m to 898.761 m897.117 m
898.295 m891.720 m to 898.768 m897.127 m
898.291 m892.864 m to 898.946 m897.126 m
898.289 m893.700 m to 898.965 m897.302 m
898.286 m893.926 m to 899.012 m898.122 m
898.282 m893.690 m to 898.942 m898.124 m
898.280 m893.686 m to 898.943 m898.127 m
898.282 m894.522 m to 898.968 m898.143 m
898.276 m890.159 m to 899.607 m898.143 m
898.275 mno valueno value
898.271 mno valueno value
898.271 mno valueno value
898.271 mno valueno value
898.269 mno valueno value
898.267 mno valueno value
898.267 mno valueno value
898.267 mno valueno value
898.265 mno valueno value
898.264 mno valueno value
898.266 mno valueno value
898.270 mno valueno value
898.271 mno valueno value
898.270 mno valueno value
898.270 mno valueno value
898.271 mno valueno value
898.268 mno valueno value
898.267 mno valueno value
898.266 mno valueno value
898.265 mno valueno value
898.271 mno valueno value
898.272 mno valueno value
898.271 mno valueno value
898.270 mno valueno value
898.277 mno valueno value
898.278 mno valueno value
898.278 mno valueno value
898.277 mno valueno value
898.278 mno valueno value
898.276 mno valueno value
898.277 mno valueno value
898.277 mno valueno value
898.278 mno valueno value
898.279 mno valueno value
898.278 mno valueno value
898.279 mno valueno value
898.279 mno valueno value
898.299 mno valueno value
898.301 mno valueno value
898.309 mno valueno value
898.308 mno valueno value
898.308 mno valueno value
898.308 mno valueno value
898.313 mno valueno value
898.309 mno valueno value
898.308 mno valueno value
898.306 mno valueno value
898.306 mno valueno value
898.305 mno valueno value
898.304 mno valueno value
898.303 mno valueno value
898.304 mno valueno value
898.304 mno valueno value
898.308 mno valueno value
898.303 mno valueno value
898.301 mno valueno value
898.300 mno valueno value
898.300 mno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no valueno valueno value
no value893.878 m to 898.923 m898.056 m
no value893.877 m to 898.922 m898.056 m
no value893.875 m to 898.922 m898.054 m
no value891.482 m to 898.876 m897.997 m
no value891.482 m to 898.876 m897.997 m
no value891.482 m to 898.876 m897.997 m
no value893.871 m to 898.923 m898.056 m
no value893.871 m to 898.923 m898.056 m
no value893.872 m to 898.923 m898.056 m
no value893.872 m to 898.923 m898.055 m
no value893.872 m to 898.923 m898.054 m
no value893.872 m to 898.923 m898.054 m
no value893.872 m to 899.068 m898.056 m
no value893.874 m to 899.064 m898.054 m
no value893.874 m to 899.082 m898.098 m
no value893.875 m to 899.080 m898.054 m
no value893.875 m to 899.083 m898.054 m
no value893.178 m to 899.070 m897.996 m
no value893.177 m to 899.078 m897.943 m
no value893.179 m to 899.852 m898.050 m
no value892.681 m to 899.852 m898.048 m
no value892.683 m to 899.849 m898.045 m
no value892.685 m to 899.754 m897.936 m
no value893.174 m to 899.075 m897.297 m
no value893.172 m to 899.037 m896.987 m
no value893.175 m to 899.033 m896.984 m
no value893.008 m to 899.314 m897.395 m
no value893.168 m to 899.335 m897.397 m
no value893.168 m to 899.474 m897.398 m
no value893.168 m to 899.763 m897.406 m
no value893.169 m to 899.863 m897.407 m
no value893.171 m to 899.882 m897.406 m
no value893.172 m to 899.893 m897.411 m
no value893.172 m to 899.902 m897.433 m
no value893.172 m to 899.908 m897.463 m
no value893.172 m to 899.913 m897.480 m
no value893.174 m to 899.922 m897.481 m
no value893.175 m to 899.954 m897.628 m
no value893.175 m to 899.993 m897.648 m
no value893.179 m to 900.032 m897.752 m
no value893.179 m to 900.054 m897.875 m
no value893.180 m to 900.076 m897.980 m
no value893.184 m to 900.083 m898.043 m
no value893.187 m to 900.089 m898.088 m
no value893.188 m to 900.088 m898.095 m
no value893.192 m to 900.085 m898.111 m
no value893.215 m to 900.076 m898.167 m
no value893.412 m to 900.052 m898.217 m
no value893.629 m to 900.039 m898.240 m
no value893.888 m to 900.038 m898.302 m
no value893.892 m to 900.039 m898.335 m
no value893.894 m to 900.045 m898.393 m
no value893.901 m to 900.043 m898.402 m
no value893.900 m to 900.048 m898.405 m
no value893.906 m to 900.049 m898.425 m
no value894.240 m to 900.050 m898.465 m
no value894.382 m to 900.050 m898.472 m
no value894.382 m to 900.056 m898.636 m
no value894.383 m to 900.064 m898.724 m
no value894.384 m to 900.067 m898.732 m
no value894.550 m to 900.069 m898.775 m
no value894.579 m to 900.077 m898.863 m
no value894.582 m to 900.083 m898.969 m
no value894.656 m to 900.087 m898.985 m
no value894.736 m to 900.089 m899.018 m
no value894.746 m to 900.092 m899.048 m
no value894.808 m to 900.094 m899.214 m
no value894.874 m to 900.094 m899.258 m
no value894.904 m to 900.091 m899.289 m
no value894.934 m to 900.089 m899.314 m
no value894.965 m to 900.087 m899.319 m
no value894.982 m to 900.086 m899.331 m
no value895.020 m to 900.086 m899.370 m
no value895.035 m to 900.085 m899.440 m
no value895.560 m to 900.077 m899.370 m
no value895.742 m to 900.072 m899.425 m
no value895.812 m to 900.082 m899.527 m
no value895.828 m to 900.076 m899.530 m
no value895.831 m to 900.066 m899.541 m
no value895.832 m to 900.055 m899.550 m
no value895.826 m to 900.050 m899.563 m
no value895.811 m to 900.041 m899.574 m
no value895.796 m to 900.029 m899.574 m
no value895.788 m to 900.020 m899.574 m
no value895.779 m to 900.016 m899.569 m
no value895.773 m to 900.007 m899.562 m
no value895.768 m to 899.998 m899.562 m
no value895.719 m to 899.985 m899.574 m
no value895.706 m to 899.985 m899.580 m
no value895.656 m to 899.981 m899.580 m
no value895.592 m to 899.980 m899.579 m
no value895.551 m to 899.978 m899.568 m
no value895.428 m to 899.977 m899.556 m
no value895.372 m to 899.972 m899.537 m
no value895.350 m to 899.971 m899.518 m
no value895.336 m to 899.968 m899.483 m
no value895.275 m to 899.968 m899.438 m
no value894.896 m to 899.968 m899.433 m
no value894.583 m to 899.968 m899.371 m
no value894.380 m to 899.962 m899.329 m
no value894.190 m to 899.957 m899.297 m
no value893.912 m to 899.952 m899.243 m
no value893.831 m to 899.949 m899.187 m
no value893.820 m to 899.945 m899.148 m
no value893.812 m to 899.941 m899.113 m
no value893.806 m to 899.942 m899.082 m
no value893.799 m to 899.944 m899.062 m
no value893.781 m to 899.948 m899.049 m
no value893.768 m to 899.946 m899.008 m
no value893.754 m to 899.948 m898.965 m
no value893.749 m to 899.940 m898.905 m
no value893.748 m to 899.929 m898.847 m
no value893.745 m to 899.924 m898.824 m
no value893.736 m to 899.919 m898.797 m
no value893.703 m to 899.910 m898.723 m
no value893.688 m to 899.907 m898.703 m
no value893.686 m to 899.901 m898.685 m
no value893.674 m to 899.888 m898.656 m
no value893.670 m to 899.878 m898.621 m
no value893.652 m to 899.872 m898.604 m
no value893.645 m to 899.862 m898.552 m
no value893.581 m to 899.837 m898.540 m
no value893.499 m to 899.813 m898.523 m
no value893.474 m to 899.806 m898.522 m
no value893.472 m to 899.797 m898.518 m
no value893.472 m to 899.778 m898.495 m
no value893.472 m to 899.769 m898.465 m
no value893.474 m to 899.766 m898.451 m
no value893.622 m to 899.758 m898.465 m
no value893.643 m to 899.757 m898.485 m
no value893.644 m to 899.757 m898.516 m
no value893.644 m to 899.757 m898.528 m
no value893.644 m to 899.753 m898.538 m
no value893.644 m to 899.751 m898.541 m
no value893.644 m to 899.751 m898.538 m
no value893.642 m to 899.747 m898.534 m
no value893.642 m to 899.727 m898.524 m
no value893.642 m to 899.721 m898.519 m
no value893.641 m to 899.696 m898.505 m
no value893.638 m to 899.689 m898.500 m
no value893.638 m to 899.687 m898.495 m
no value893.636 m to 899.681 m898.495 m
no value893.632 m to 899.681 m898.493 m
no value893.629 m to 899.675 m898.491 m
no value893.621 m to 899.676 m898.486 m
no value893.615 m to 899.676 m898.469 m
no value893.609 m to 899.675 m898.443 m
no value893.602 m to 899.675 m898.413 m
no value893.598 m to 899.669 m898.413 m
no value893.595 m to 899.665 m898.408 m
no value893.592 m to 899.663 m898.394 m
no value893.590 m to 899.658 m898.390 m
no value893.584 m to 899.639 m898.384 m
no value893.585 m to 899.589 m898.430 m
no value893.491 m to 899.582 m898.420 m
no value893.450 m to 899.579 m898.402 m
no value893.436 m to 899.576 m898.384 m
no value893.424 m to 899.572 m898.380 m
no value893.417 m to 899.566 m898.373 m
no value893.412 m to 899.549 m898.367 m
no value893.408 m to 899.527 m898.354 m
no value893.400 m to 899.519 m898.346 m
no value893.378 m to 899.516 m898.326 m
no value893.347 m to 899.511 m898.299 m
no value893.309 m to 899.497 m898.282 m
no value892.967 m to 899.468 m898.269 m
no value892.575 m to 899.427 m898.215 m
no value892.212 m to 899.412 m898.163 m
no value892.179 m to 899.399 m898.152 m
no value892.145 m to 899.357 m898.127 m
no value892.130 m to 899.343 m898.106 m
no value892.119 m to 899.324 m898.086 m
no value892.106 m to 899.303 m898.078 m
no value892.096 m to 899.289 m898.052 m
no value892.059 m to 899.274 m898.023 m
no value892.023 m to 899.261 m897.979 m
no value891.875 m to 899.255 m897.902 m
no value891.872 m to 899.252 m897.841 m
no value891.872 m to 899.249 m897.794 m
no value891.867 m to 899.243 m897.743 m
no value891.702 m to 899.209 m897.697 m
no value891.334 m to 899.146 m897.673 m
no value891.140 m to 899.081 m897.630 m
no value891.140 m to 899.017 m897.601 m
no value891.140 m to 898.963 m897.593 m
no value891.142 m to 898.917 m897.576 m
no value891.141 m to 898.926 m897.546 m
no value891.145 m to 898.881 m897.535 m
no value891.146 m to 898.863 m897.517 m
no value891.146 m to 898.860 m897.502 m
no value891.146 m to 898.851 m897.477 m
no value891.146 m to 898.840 m897.437 m
no value891.146 m to 898.836 m897.391 m
no value891.146 m to 898.831 m897.366 m
no value891.146 m to 898.826 m897.361 m
no value891.146 m to 898.820 m897.354 m
no value891.146 m to 898.813 m897.343 m
no value891.146 m to 898.806 m897.326 m
no value891.146 m to 898.801 m897.291 m
no value891.145 m to 898.800 m897.289 m
no value891.142 m to 898.800 m897.289 m
no value891.143 m to 898.800 m897.327 m
no value891.140 m to 898.809 m897.319 m
no value891.138 m to 898.809 m897.311 m
no value891.138 m to 898.832 m897.305 m
no value891.138 m to 898.860 m897.301 m
no value891.136 m to 898.877 m897.295 m
no value891.135 m to 898.880 m897.290 m
no value891.134 m to 898.880 m897.286 m
no value891.133 m to 898.876 m897.279 m
no value891.133 m to 898.873 m897.275 m
no value891.133 m to 898.872 m897.271 m
no value891.133 m to 898.870 m897.269 m
no value891.133 m to 898.867 m897.264 m
no value891.133 m to 898.864 m897.258 m
no value891.134 m to 898.862 m897.252 m
897.909 m891.132 m to 898.860 m897.246 m
897.902 m891.131 m to 898.859 m897.243 m
897.897 m891.127 m to 898.857 m897.240 m
897.900 m891.124 m to 898.854 m897.240 m
897.895 m891.122 m to 898.850 m897.237 m
897.896 m891.120 m to 898.848 m897.234 m
897.894 m891.116 m to 898.847 m897.228 m
897.893 m891.115 m to 898.847 m897.225 m
897.890 m891.113 m to 898.847 m897.221 m
897.887 m891.112 m to 898.847 m897.218 m
897.884 m891.112 m to 898.847 m897.215 m
897.882 m891.109 m to 898.847 m897.211 m
897.881 m891.116 m to 898.847 m897.209 m
897.877 m891.133 m to 898.847 m897.209 m
897.874 m891.146 m to 898.847 m897.207 m
897.866 m891.169 m to 898.847 m897.207 m
897.859 m891.402 m to 898.847 m897.206 m
897.856 m891.742 m to 898.847 m897.204 m
897.853 m891.756 m to 898.966 m897.229 m
897.849 m891.753 m to 898.979 m897.219 m
897.844 m891.750 m to 898.979 m897.202 m
897.841 m891.750 m to 898.979 m897.198 m
897.838 m891.747 m to 898.974 m897.194 m
897.834 m891.747 m to 898.971 m897.189 m
897.832 m891.747 m to 898.968 m897.181 m
897.827 m891.747 m to 898.965 m897.174 m
897.824 m891.747 m to 898.963 m897.169 m
897.821 m891.747 m to 898.962 m897.164 m
897.819 m891.745 m to 898.962 m897.159 m
897.817 m891.744 m to 898.960 m897.154 m
897.816 m891.744 m to 898.960 m897.154 m
897.820 m891.744 m to 898.957 m897.148 m
897.818 m891.744 m to 898.956 m897.146 m
897.818 m891.741 m to 898.950 m897.142 m
897.815 m891.741 m to 898.950 m897.141 m
897.810 m891.738 m to 898.949 m897.140 m
897.808 m891.735 m to 898.949 m897.139 m
897.805 m891.735 m to 898.949 m897.137 m
897.803 m891.730 m to 898.947 m897.136 m
897.802 m891.726 m to 898.947 m897.134 m
897.801 m891.723 m to 898.945 m897.133 m
897.800 m891.723 m to 898.944 m897.132 m
897.809 m891.720 m to 898.943 m897.129 m
897.795 m891.719 m to 898.943 m897.127 m
897.791 m891.720 m to 898.943 m897.127 m

The last 10 years, weekly averages

The last 10 years, weekly averages 896 m 898 m 900 m Highest 901.322 m 897.800 m
  • Level
  • Our record
Weekly averages of the Altawan Reservoir at Govenlock from the week of 24 October 2016 to 25 October 2026.
Table: The last 10 years, weekly averages
Week startingWeekly average (m)
897.539 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
898.422 m
900.021 m
899.937 m
899.963 m
900.300 m
900.384 m
900.017 m
899.961 m
899.941 m
899.932 m
899.933 m
899.920 m
899.898 m
899.741 m
899.390 m
898.977 m
898.721 m
898.693 m
898.662 m
898.621 m
898.575 m
898.526 m
898.467 m
898.414 m
898.125 m
897.732 m
897.652 m
897.611 m
897.574 m
897.534 m
897.503 m
897.485 m
897.466 m
897.456 m
897.438 m
897.420 m
897.409 m
897.391 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
897.398 m
897.395 m
897.395 m
897.406 m
897.410 m
897.412 m
897.421 m
899.451 m
900.234 m
900.004 m
899.906 m
899.815 m
899.478 m
899.104 m
899.008 m
898.975 m
898.975 m
898.956 m
898.927 m
898.881 m
898.831 m
898.780 m
898.738 m
898.646 m
898.347 m
898.277 m
898.251 m
898.214 m
898.197 m
898.193 m
898.180 m
898.172 m
898.161 m
898.144 m
898.131 m
898.123 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
898.097 m
898.094 m
898.092 m
898.190 m
899.025 m
899.223 m
899.289 m
899.318 m
899.034 m
898.582 m
898.553 m
898.167 m
897.742 m
897.490 m
897.458 m
897.426 m
897.414 m
897.405 m
897.384 m
897.344 m
897.294 m
897.245 m
897.186 m
897.002 m
896.512 m
896.265 m
896.239 m
896.203 m
896.196 m
896.174 m
896.150 m
896.160 m
896.146 m
896.137 m
896.126 m
896.104 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
896.122 m
896.117 m
896.116 m
896.117 m
896.124 m
898.693 m
900.256 m
900.154 m
900.333 m
900.118 m
899.991 m
899.750 m
899.505 m
899.756 m
899.801 m
899.808 m
899.779 m
899.759 m
899.746 m
899.718 m
899.684 m
899.667 m
899.627 m
899.510 m
899.243 m
899.176 m
899.131 m
899.083 m
899.068 m
899.042 m
899.028 m
898.993 m
898.972 m
898.958 m
898.948 m
898.943 m
898.944 m
898.976 m
898.972 m
898.970 m
898.966 m
898.962 m
898.957 m
898.953 m
898.948 m
898.943 m
898.940 m
898.933 m
898.927 m
898.924 m
898.923 m
898.922 m
898.921 m
898.920 m
899.009 m
900.079 m
900.016 m
899.952 m
900.067 m
899.972 m
899.936 m
899.923 m
899.935 m
899.939 m
899.678 m
899.976 m
899.857 m
899.477 m
899.281 m
899.244 m
899.201 m
899.152 m
899.108 m
899.069 m
898.783 m
898.456 m
898.415 m
898.392 m
898.371 m
898.340 m
898.302 m
898.279 m
898.249 m
898.219 m
898.191 m
898.164 m
898.144 m
898.132 m
898.123 m
898.112 m
898.109 m
898.101 m
898.100 m
898.100 m
898.094 m
898.088 m
898.084 m
898.077 m
898.070 m
898.068 m
898.063 m
898.060 m
898.057 m
898.055 m
898.052 m
898.058 m
898.060 m
898.222 m
898.773 m
898.946 m
898.975 m
899.009 m
899.023 m
898.724 m
897.948 m
897.358 m
896.775 m
896.488 m
896.378 m
896.282 m
896.755 m
898.203 m
898.617 m
898.426 m
897.879 m
897.520 m
897.403 m
897.038 m
896.733 m
896.657 m
896.390 m
896.344 m
896.296 m
896.260 m
896.235 m
896.209 m
896.187 m
896.161 m
896.143 m
896.152 m
896.143 m
896.133 m
896.128 m
896.121 m
896.117 m
896.114 m
896.118 m
896.123 m
896.124 m
896.121 m
896.117 m
896.124 m
896.123 m
896.119 m
896.115 m
896.111 m
896.116 m
896.114 m
896.118 m
896.124 m
896.121 m
896.120 m
896.121 m
897.147 m
900.464 m
900.201 m
900.095 m
899.992 m
899.752 m
899.353 m
899.131 m
899.145 m
899.135 m
899.100 m
899.086 m
899.038 m
898.995 m
898.952 m
898.729 m
898.444 m
898.402 m
898.361 m
898.326 m
898.286 m
898.247 m
898.224 m
898.198 m
898.180 m
898.179 m
898.171 m
898.163 m
898.152 m
898.144 m
898.148 m
898.145 m
898.142 m
898.135 m
898.132 m
898.132 m
898.129 m
898.124 m
898.121 m
898.125 m
898.127 m
898.127 m
898.127 m
898.138 m
898.143 m
898.141 m
898.140 m
898.141 m
899.500 m
900.044 m
899.911 m
900.095 m
899.983 m
899.897 m
899.862 m
899.851 m
900.004 m
899.860 m
899.530 m
899.394 m
899.402 m
899.401 m
899.383 m
899.363 m
899.347 m
899.344 m
899.319 m
899.215 m
898.851 m
898.766 m
898.729 m
898.699 m
898.663 m
898.628 m
898.595 m
898.593 m
898.578 m
898.548 m
898.522 m
898.503 m
898.487 m
898.470 m
898.460 m
898.451 m
898.447 m
898.453 m
898.453 m
898.452 m
898.450 m
898.449 m
898.450 m
898.456 m
898.455 m
898.454 m
898.451 m
898.457 m
898.459 m
898.460 m
898.463 m
898.474 m
898.590 m
898.833 m
899.460 m
899.984 m
900.031 m
900.060 m
899.989 m
899.973 m
899.859 m
899.519 m
899.141 m
899.063 m
899.043 m
899.010 m
898.998 m
898.993 m
898.963 m
898.948 m
898.913 m
898.876 m
898.608 m
898.577 m
898.568 m
898.536 m
898.500 m
898.472 m
898.443 m
898.425 m
898.393 m
898.365 m
898.344 m
898.320 m
898.305 m
898.286 m
898.271 m
898.267 m
898.268 m
898.274 m
898.277 m
898.293 m
898.308 m
898.304 m
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
897.894 m
897.875 m
897.845 m
897.822 m
897.814 m
897.800 m

The whole record since 1960, monthly averages

The whole record since 1960, monthly averages 890 m 895 m 900 m Highest 901.322 m Lowest 889.284 m 897.816 m
  • Level
  • Our record
Monthly averages of the Altawan Reservoir at Govenlock from 29 February 1960 to 25 October 2026.
Table: The whole record since 1960, monthly averages
Month startingMonthly average (m)
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
898.209 m
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
no value
898.894 m
897.964 m
897.797 m
897.707 m
no value
no value
no value
no value
898.185 m
898.626 m
897.505 m
896.837 m
896.180 m
894.420 m
894.044 m
894.019 m
no value
no value
no value
no value
no value
899.017 m
899.746 m
898.572 m
898.099 m
897.185 m
896.618 m
896.554 m
no value
no value
no value
no value
896.486 m
898.952 m
898.248 m
896.446 m
896.498 m
895.299 m
894.861 m
894.769 m
no value
no value
no value
no value
894.757 m
898.391 m
899.293 m
898.171 m
897.585 m
896.511 m
896.003 m
895.924 m
no value
no value
no value
no value
898.697 m
899.434 m
898.860 m
897.998 m
897.210 m
895.903 m
895.750 m
895.708 m
no value
no value
no value
no value
895.916 m
896.204 m
896.501 m
895.542 m
894.399 m
891.848 m
891.765 m
891.671 m
no value
no value
no value
no value
no value
897.683 m
898.859 m
899.659 m
898.853 m
897.650 m
897.233 m
897.135 m
no value
no value
no value
no value
896.989 m
897.752 m
900.069 m
899.777 m
899.711 m
899.021 m
898.770 m
898.714 m
no value
no value
no value
no value
899.581 m
900.010 m
899.547 m
899.128 m
898.989 m
898.132 m
897.734 m
897.472 m
no value
no value
no value
no value
897.378 m
897.369 m
897.017 m
896.004 m
894.615 m
890.974 m
891.115 m
891.158 m
no value
no value
no value
no value
891.235 m
899.418 m
899.964 m
899.353 m
899.110 m
898.367 m
898.050 m
897.790 m
no value
no value
no value
no value
898.956 m
900.094 m
899.967 m
898.999 m
898.412 m
897.590 m
897.429 m
897.059 m
no value
no value
no value
no value
896.766 m
897.044 m
896.339 m
895.099 m
894.269 m
891.127 m
890.609 m
889.600 m
no value
no value
no value
no value
895.860 m
895.873 m
895.584 m
893.415 m
892.602 m
890.235 m
889.953 m
889.581 m
no value
no value
no value
no value
889.600 m
893.849 m
899.621 m
899.773 m
899.435 m
898.468 m
898.296 m
898.236 m
no value
no value
no value
no value
898.314 m
898.066 m
897.835 m
897.362 m
896.796 m
895.895 m
895.428 m
894.570 m
no value
no value
no value
no value
894.554 m
894.892 m
892.643 m
890.595 m
890.376 m
890.085 m
889.826 m
889.536 m
no value
no value
no value
no value
no value
897.403 m
896.844 m
895.351 m
892.832 m
890.751 m
890.725 m
no value
no value
no value
no value
891.841 m
900.001 m
899.889 m
899.926 m
899.534 m
899.307 m
898.567 m
898.761 m
899.052 m
no value
no value
no value
899.058 m
899.316 m
899.969 m
899.465 m
898.804 m
898.274 m
898.198 m
898.146 m
897.552 m
no value
no value
no value
no value
897.476 m
897.892 m
896.466 m
896.192 m
894.630 m
893.594 m
893.433 m
893.331 m
no value
no value
no value
no value
893.214 m
895.572 m
893.451 m
892.406 m
892.150 m
892.019 m
891.939 m
891.839 m
no value
no value
no value
no value
898.254 m
899.819 m
899.647 m
899.701 m
899.255 m
898.320 m
897.873 m
897.671 m
no value
no value
no value
no value
897.867 m
899.067 m
899.667 m
898.559 m
898.952 m
897.303 m
896.610 m
896.511 m
no value
no value
no value
896.422 m
896.434 m
896.379 m
894.230 m
893.663 m
894.066 m
894.163 m
894.037 m
893.949 m
no value
no value
no value
893.879 m
896.049 m
899.998 m
899.711 m
898.996 m
899.421 m
899.920 m
899.836 m
899.839 m
no value
no value
no value
no value
900.021 m
900.048 m
899.687 m
899.469 m
899.289 m
898.251 m
898.102 m
898.020 m
no value
no value
no value
897.938 m
898.008 m
898.257 m
898.003 m
897.119 m
897.931 m
896.748 m
896.476 m
896.424 m
no value
no value
no value
no value
898.407 m
900.167 m
899.915 m
899.286 m
899.307 m
898.806 m
898.674 m
898.230 m
no value
no value
no value
898.157 m
898.783 m
899.910 m
899.841 m
899.843 m
899.593 m
898.722 m
898.551 m
898.441 m
no value
no value
no value
no value
898.372 m
898.395 m
897.874 m
897.039 m
898.402 m
896.335 m
895.993 m
895.906 m
no value
no value
no value
no value
896.387 m
898.506 m
898.924 m
898.168 m
896.505 m
894.654 m
893.997 m
893.942 m
no value
no value
no value
no value
893.879 m
893.895 m
893.812 m
893.684 m
893.413 m
893.148 m
892.971 m
892.884 m
no value
no value
no value
no value
892.696 m
892.747 m
892.256 m
891.132 m
890.998 m
890.822 m
890.536 m
890.279 m
890.077 m
no value
no value
no value
890.037 m
891.598 m
893.177 m
897.072 m
897.419 m
896.483 m
895.108 m
895.121 m
no value
no value
no value
no value
897.167 m
899.947 m
899.814 m
898.774 m
898.486 m
897.560 m
897.417 m
897.337 m
no value
no value
no value
no value
898.057 m
899.901 m
899.568 m
898.336 m
898.163 m
897.527 m
897.212 m
897.145 m
no value
no value
no value
no value
898.495 m
899.483 m
899.341 m
898.734 m
898.965 m
898.403 m
898.199 m
898.121 m
no value
no value
no value
no value
898.232 m
899.954 m
899.053 m
897.623 m
897.578 m
896.638 m
896.486 m
896.401 m
no value
no value
no value
no value
896.686 m
898.258 m
898.662 m
896.184 m
896.108 m
895.195 m
894.589 m
894.569 m
no value
no value
no value
no value
894.384 m
894.425 m
895.391 m
893.832 m
894.083 m
893.889 m
893.808 m
893.717 m
no value
no value
no value
no value
894.309 m
897.592 m
896.294 m
892.405 m
892.205 m
892.055 m
891.869 m
891.753 m
no value
no value
no value
no value
891.756 m
895.579 m
899.561 m
900.076 m
899.884 m
899.774 m
899.708 m
899.656 m
899.609 m
no value
no value
no value
899.900 m
900.227 m
900.209 m
900.087 m
899.883 m
899.584 m
899.247 m
899.146 m
no value
no value
no value
no value
899.152 m
899.508 m
899.184 m
898.558 m
898.334 m
897.905 m
897.587 m
897.505 m
no value
no value
no value
no value
897.845 m
899.964 m
899.703 m
899.255 m
899.280 m
899.340 m
899.245 m
899.149 m
no value
no value
no value
no value
899.617 m
899.996 m
899.700 m
898.925 m
898.929 m
898.732 m
898.862 m
898.775 m
no value
no value
no value
no value
900.040 m
899.914 m
899.514 m
898.584 m
898.434 m
897.776 m
897.622 m
897.575 m
no value
no value
no value
no value
898.560 m
898.738 m
898.403 m
897.231 m
896.994 m
897.214 m
897.281 m
897.368 m
no value
no value
no value
no value
900.139 m
899.944 m
899.675 m
898.707 m
898.498 m
897.737 m
897.505 m
897.429 m
no value
no value
no value
no value
897.401 m
898.637 m
899.709 m
898.985 m
898.851 m
898.446 m
898.199 m
898.149 m
no value
no value
no value
no value
898.326 m
899.174 m
898.117 m
897.429 m
897.305 m
896.600 m
896.182 m
896.137 m
no value
no value
no value
no value
896.168 m
900.097 m
899.782 m
899.785 m
899.689 m
899.282 m
899.048 m
898.960 m
898.965 m
898.958 m
898.937 m
898.923 m
899.549 m
899.976 m
899.887 m
899.423 m
899.063 m
898.411 m
898.280 m
898.163 m
898.110 m
898.094 m
898.070 m
898.055 m
898.371 m
898.955 m
897.138 m
897.159 m
897.887 m
896.671 m
896.265 m
896.163 m
896.129 m
896.119 m
896.121 m
896.115 m
896.119 m
898.326 m
899.733 m
899.121 m
898.923 m
898.369 m
898.219 m
898.165 m
898.144 m
898.130 m
898.125 m
898.139 m
899.278 m
899.953 m
899.740 m
899.388 m
899.269 m
898.727 m
898.599 m
898.508 m
898.454 m
898.451 m
898.454 m
898.459 m
898.854 m
900.011 m
899.481 m
899.012 m
898.887 m
898.546 m
898.429 m
898.324 m
898.271 m
898.296 m
no value
no value
no value
no value
no value
no value
no value
no value
897.882 m
897.816 m

How this compares

  • The daily average on 25 October 2026 was 897.791 m, the nineteenth highest for 25 October in 60 years of record (1966 to 2026). The newest value is provisional.
  • That is 0.34 m below the median of 898.13 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
898.301 m
898.483 m
898.154 m
896.157 m
898.135 m
898.945 m
896.125 m
898.13 m
897.418 m
897.503 m

Year by year

The lowest and highest daily average of each year

The lowest and highest daily average of each year 896 m 898 m 900 m
  • Each year, lowest to highest
  • The year so far
The lowest and highest daily average of the Altawan Reservoir at Govenlock in each year from 2020 to 2025 with a value on at least 300 days, and in 2026 so far.
Table: The lowest and highest daily average of each year
YearLowest daily average (m)DayHighest daily average (m)DayDays with a value
896.114 m900.42 m310
898.083 m900.199 m365
896.112 m899.029 m365
896.11 m900.872 m365
898.12 m900.41 m366
898.264 m900.105 m365
so far, provisional897.791 m897.909 m45

Each year from January to December, weekly averages

Each year from January to December, weekly averages 890 m 895 m 900 m 2026 so far
  • The year so far
  • , the year before
  • Other years
  • Normal range for the week
The weekly averages of the Altawan Reservoir at Govenlock in each year from 1986 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. 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)Normal range (m)
to no valueno value
to no valueno value
to no valueno value
to no valueno value
to no valueno value
to no value893.877 m to 898.922 m
to no value893.872 m to 898.923 m
to no value893.875 m to 899.080 m
to no value892.685 m to 899.754 m
to no value893.168 m to 899.763 m
to no value893.174 m to 899.922 m
to no value893.187 m to 900.089 m
to no value893.892 m to 900.039 m
to no value894.382 m to 900.056 m
to no value894.736 m to 900.089 m
to no value894.982 m to 900.086 m
to no value895.831 m to 900.066 m
to no value895.773 m to 900.007 m
to no value895.428 m to 899.977 m
to no value894.380 m to 899.962 m
to no value893.799 m to 899.944 m
to no value893.736 m to 899.919 m
to no value893.645 m to 899.862 m
to no value893.474 m to 899.766 m
to no value893.644 m to 899.751 m
to no value893.636 m to 899.681 m
to no value893.598 m to 899.669 m
to no value893.450 m to 899.579 m
to no value893.378 m to 899.516 m
to no value892.145 m to 899.357 m
to no value891.875 m to 899.255 m
to no value891.140 m to 899.017 m
to no value891.146 m to 898.851 m
to no value891.146 m to 898.806 m
to no value891.138 m to 898.832 m
to no value891.133 m to 898.872 m
to 897.900 m891.127 m to 898.857 m
to 897.887 m891.112 m to 898.847 m
to 897.862 m891.402 m to 898.847 m
to 897.834 m891.747 m to 898.971 m
to 897.819 m891.744 m to 898.960 m
to 897.806 m891.735 m to 898.949 m
to no value891.720 m to 898.943 m
to no value893.686 m to 898.943 m
to no valueno value
to no valueno value
to no valueno value
to no valueno value
to no valueno value
to no valueno value
to no valueno value
to no valueno value
Every year
YearDays with a valueDays below the normal range
to 460
3650
3660
3650
3650
3650
3100
2530
2520
2610
2450
2450
2450
2430
2450
2450
26737
24858
25348
2540
2530
2490
2540
2590
252103
269255
25092
2531
2550
2790
2520
2730
2530
2765
27831
2490
2519
255102
2493
2650
27420
19879
259200
2530
24548
249146
24891
2450
24532
24693
2600
2480
21710
24729
2270
2340
2340
2111
2440
1360
550
565
712
490
242
2321
1611

How it compares

That is within the normal range for the date.

Records

  • Highest daily average in our series since 29 February 1960: 901.322 m on 26 September 1986.
  • Lowest daily average in our series since 29 February 1960: 889.284 m on 29 February 1960.

About this gauge

Govenlock is a gauge on the Altawan Reservoir in Canada.

It lies at 49.1670° N, 109.9177° W.

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

Our readings for this gauge go back to 29 February 1960.

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 891.72 m to 898.94 m: the 10th to 90th percentile of the daily averages from 18 October to 1 November in 58 years between 1967 and 2025.

Keep exploring

Sources