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Ketchikan water levels in 2020
Annual rank66 / 105
vs. average-1.4 cm
Highest monthly peak3.57 mDecember 2020
Monthly mean vs. previous year
| Month | 2020 (cm) | 2019 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 11.8 | 8.8 | 3.0 | 3.10 |
| Feb | -5.5 | -13.8 | 8.3 | 2.92 |
| Mar | -10.7 | -14.3 | 3.6 | 3.14 |
| Apr | -18.2 | -6.3 | -11.9 | 3.17 |
| May | -5.6 | -18.4 | 12.8 | 3.13 |
| Jun | -5.5 | -17.9 | 12.4 | 3.15 |
| Jul | -6.3 | -9.3 | 3.0 | 2.76 |
| Aug | 1.1 | -8.9 | 10.0 | 3.14 |
| Sep | -1.7 | -3.1 | 1.4 | 3.15 |
| Oct | -5.9 | -4.3 | -1.6 | 3.41 |
| Nov | 9.4 | 0.3 | 9.1 | 3.53 |
| Dec | 16.4 | 15.6 | 0.8 | 3.57 |
Nearby years (cm vs. average)
-3.5
-1.9
-4.1
-8.0
-5.7
-1.4
+1.4
-2.9
+0.2
-1.5
-1.5
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2020 annual mean water level ranked 66 of 105 years (-1.4 cm vs. the period average).