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Ketchikan water levels in 2017
Annual rank94 / 105
vs. average-4.1 cm
Highest monthly peak3.26 mJanuary 2017
Monthly mean vs. previous year
| Month | 2017 (cm) | 2016 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 1.8 | 18.0 | -16.2 | 3.26 |
| Feb | 0.8 | 9.7 | -8.9 | 3.16 |
| Mar | 0.3 | 12.4 | -12.1 | 3.01 |
| Apr | -2.2 | -9.1 | 6.9 | 3.22 |
| May | -13.5 | -19.3 | 5.8 | 3.04 |
| Jun | -6.4 | -13.3 | 6.9 | 3.18 |
| Jul | -11.7 | -14.3 | 2.6 | 3.04 |
| Aug | -7.7 | -22.8 | 15.1 | 3.05 |
| Sep | -6.7 | -12.7 | 6.0 | 2.71 |
| Oct | -7.9 | 3.6 | -11.5 | 3.03 |
| Nov | 9.4 | 25.1 | -15.7 | 3.17 |
| Dec | -8.9 | -3.9 | -5.0 | 3.20 |
Nearby years (cm vs. average)
+0.1
-9.9
-4.9
-3.5
-1.9
-4.1
-8.0
-5.7
-1.4
+1.4
-2.9
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2017 annual mean water level ranked 94 of 105 years (-4.1 cm vs. the period average).