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Tacoma, Commencement Bay, Sitcum Waterway water levels in 2021
Annual rank8 / 28
vs. average2.8 cm
Highest monthly peak2.34 mJanuary 2021
Monthly mean vs. previous year
| Month | 2021 (cm) | 2020 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 18.2 | 20.7 | -2.5 | 2.34 |
| Feb | 6.0 | 1.6 | 4.4 | 2.10 |
| Mar | 1.3 | 2.6 | -1.3 | 1.79 |
| Apr | -5.3 | -3.1 | -2.2 | 1.85 |
| May | -4.6 | 4.9 | -9.5 | 1.85 |
| Jun | 3.8 | 0.0 | 3.8 | 1.94 |
| Jul | 2.8 | 0.4 | 2.4 | 1.81 |
| Aug | 3.9 | 0.7 | 3.2 | 1.78 |
| Sep | 2.6 | 4.1 | -1.5 | 1.76 |
| Oct | 10.0 | -0.9 | 10.9 | 1.95 |
| Nov | 13.3 | 7.3 | 6.0 | 2.18 |
| Dec | 22.6 | 6.3 | 16.3 | 2.15 |
Nearby years (cm vs. average)
+6.2
+5.6
+2.1
+1.7
+0.3
+2.8
+2.2
+6.6
+5.1
+3.2
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2021 annual mean water level ranked 8 of 28 years (2.8 cm vs. the period average).