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Ketchikan water levels in 2009
Annual rank95 / 105
vs. average-4.5 cm
Highest monthly peak3.42 mNovember 2009
Monthly mean vs. previous year
| Month | 2009 (cm) | 2008 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -5.8 | 11.1 | -16.9 | 3.20 |
| Feb | -6.8 | 1.4 | -8.2 | 3.09 |
| Mar | -6.8 | -2.9 | -3.9 | 2.97 |
| Apr | -21.6 | -15.3 | -6.3 | 2.81 |
| May | -15.4 | -15.3 | -0.1 | 2.98 |
| Jun | -7.2 | -10.8 | 3.6 | 3.19 |
| Jul | -14.7 | -3.1 | -11.6 | 3.03 |
| Aug | -7.8 | 4.3 | -12.1 | 3.04 |
| Sep | 4.4 | -9.1 | 13.5 | 3.26 |
| Oct | 2.9 | 1.6 | 1.3 | 3.15 |
| Nov | 21.9 | 12.6 | 9.3 | 3.42 |
| Dec | -1.2 | -3.0 | 1.8 | 3.14 |
Nearby years (cm vs. average)
-2.1
+2.4
-0.9
+1.9
-2.1
-4.5
+1.4
-2.0
+0.1
-9.9
-4.9
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2009 annual mean water level ranked 95 of 105 years (-4.5 cm vs. the period average).