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Washington, Washington Channel, D.c. water levels in 2018
Annual rank2 / 94
vs. average23.2 cm
Highest monthly peak1.49 mSeptember 2018
Monthly mean vs. previous year
| Month | 2018 (cm) | 2017 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -23.1 | -1.5 | -21.6 | 0.57 |
| Feb | -0.7 | -5.1 | 4.4 | 0.66 |
| Mar | 2.2 | -15.6 | 17.8 | 1.19 |
| Apr | 11.1 | 14.9 | -3.8 | 1.12 |
| May | 25.9 | 27.9 | -2.0 | 1.17 |
| Jun | 37.1 | 17.3 | 19.8 | 1.39 |
| Jul | 25.1 | 16.2 | 8.9 | 1.01 |
| Aug | 22.9 | 21.9 | 1.0 | 0.90 |
| Sep | 52.9 | 21.6 | 31.3 | 1.49 |
| Oct | 20.9 | 16.5 | 4.4 | 0.97 |
| Nov | 22.8 | 9.7 | 13.1 | 1.17 |
| Dec | 31.5 | -7.3 | 38.8 | 1.30 |
Nearby years (cm vs. average)
+10.7
+13.3
+9.3
+12.5
+13.8
+23.2
+22.9
+19.8
+17.1
+15.9
+21.8
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2018 annual mean water level ranked 2 of 94 years (23.2 cm vs. the period average).