Tide TablesHome › Tide tables & water levels › Ketchikan
Ketchikan water levels in 2018
Annual rank104 / 105
vs. average-8.0 cm
Highest monthly peak3.47 mDecember 2018
Monthly mean vs. previous year
| Month | 2018 (cm) | 2017 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 9.4 | 1.8 | 7.6 | 3.37 |
| Feb | -17.2 | 0.8 | -18.0 | 3.29 |
| Mar | -11.1 | 0.3 | -11.4 | 2.91 |
| Apr | -12.2 | -2.2 | -10.0 | 2.79 |
| May | -16.5 | -13.5 | -3.0 | 2.82 |
| Jun | -10.0 | -6.4 | -3.6 | 3.12 |
| Jul | -19.7 | -11.7 | -8.0 | 3.04 |
| Aug | -17.4 | -7.7 | -9.7 | 3.05 |
| Sep | -14.8 | -6.7 | -8.1 | 3.06 |
| Oct | -6.7 | -7.9 | 1.2 | 2.93 |
| Nov | 3.7 | 9.4 | -5.7 | 3.21 |
| Dec | 12.5 | -8.9 | 21.4 | 3.47 |
Nearby years (cm vs. average)
-9.9
-4.9
-3.5
-1.9
-4.1
-8.0
-5.7
-1.4
+1.4
-2.9
+0.2
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2018 annual mean water level ranked 104 of 105 years (-8.0 cm vs. the period average).