2012 Tidal Data

Monthly tidal data for Meeting House Pond (MHP), Chatham Fish Pier (CH) and Boston Harbor (BH). Depth values are in reference to the North American Vertical Datum of 1988 (NAVD88).

Mean Sea Level          Mean High Water          Mean Low Water          Mean Tidal Range

 


2012 Mean Sea Level

2012 Mean Sea Level Data (meters)

Month MHP BH CH
1 0.057 -0.081 -0.028
2 0.055 -0.079 -0.034
3 0.093 -0.059 -0.015
4 0.156 0.028 0.052
5 0.129 -0.015 -0.002
6 0.230 0.106 0.116
7 0.179 0.035 0.061
8 0.164 0.023 0.041
9 0.145 -0.014 0.022
10 0.227 0.061 0.103
11 0.198 0.024 0.096
12 0.349 0.048 0.106

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2012 Mean High Water

2012 Mean High Water Data (meters)

Month MHP BH CH
1 0.769 1.311 0.793
2 0.770 1.325 0.796
3 0.782 1.332 0.798
4 0.891 1.437 0.888
5 0.842 1.414 0.839
6 0.977 1.540 0.963
7 0.923 1.473 0.923
8 0.902 1.454 0.898
9 0.856 1.389 0.851
10 1.453
11 0.905 1.453 0.930
12 1.063 1.459 0.932

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2012 Mean Low Water

2012 Mean Low Water Data (meters)

Month MHP BH CH
1 -0.515 -1.538 -0.912
2 -0.523 -1.548 -0.924
3 -0.473 -1.519 -0.885
4 -0.442 -1.460 -0.846
5 -0.447 -1.525 -0.905
6 -0.380 -1.402 -0.798
7 -0.419 -1.479 -0.865
8 -0.430 -1.493 -0.884
9 -0.431 -1.496 -0.870
10 -1.399
11 -0.399 -1.480 -0.789
12 -0.265 -1.429 -0.782

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2012 Mean Tidal Range

2012 Mean Tidal Range Data (meters)

Month MHP BH CH
1 1.284 2.849 1.705
2 1.293 2.873 1.720
3 1.255 2.851 1.683
4 1.333 2.897 1.734
5 1.290 2.939 1.744
6 1.357 2.942 1.761
7 1.342 2.952 1.788
8 1.331 2.947 1.782
9 1.287 2.885 1.721
10 2.852
11 1.304 2.933 1.719
12 1.328 2.888 1.714

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Click on the links below to view other years or download all monthly tidal data here.

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