| Monthly sea levels for TONGA | back | table | PDF plot | Text file | Statistics |
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| Statistics | Top |
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| Mean sea level = 1.033 (Average monthly means = 1.033) | |
| Maximum recorded level of 2.715 metres at 0454 hours 15/01/2022 | |
| Minimum recorded level of -0.071 metres at 0230 hours 17/05/1995 | |
| Standard deviation of the observations = 0.3946 metres | |
| Skewness = -0.0147 |