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Tacoma, Commencement Bay, Sitcum Waterway water levels in 1999
Annual rank21 / 28
vs. average-3.5 cm
Highest monthly peak2.08 mJanuary 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 7.0 | 33.6 | -26.6 | 2.08 |
| Feb | 22.5 | 34.3 | -11.8 | 1.95 |
| Mar | 13.7 | 5.4 | 8.3 | 1.98 |
| Apr | -8.1 | -4.5 | -3.6 | 1.74 |
| May | -8.1 | -1.2 | -6.9 | 1.72 |
| Jun | -4.2 | -3.7 | -0.5 | 1.79 |
| Jul | -4.3 | -3.1 | -1.2 | 1.70 |
| Aug | -4.2 | -5.8 | 1.6 | 1.64 |
| Sep | -9.6 | -3.9 | -5.7 | 1.61 |
| Oct | -11.5 | -5.8 | -5.7 | 1.86 |
| Nov | 7.3 | 14.0 | -6.7 | 1.95 |
| Dec | -1.4 | 1.9 | -3.3 | 1.81 |
Nearby years (cm vs. average)
+1.7
-3.5
-6.5
-7.5
-4.9
-0.9
-3.0
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 21 of 28 years (-3.5 cm vs. the period average).