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Anchorage, Knik Arm water levels in 2009
Annual rank42 / 46
vs. average-6.5 cm
Highest monthly peak5.14 mSeptember 2009
Monthly mean vs. previous year
| Month | 2009 (cm) | 2008 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -5.3 | -1.8 | -3.5 | 5.05 |
| Feb | -19.9 | -3.2 | -16.7 | 4.90 |
| Mar | -11.9 | -7.9 | -4.0 | 4.97 |
| Apr | -20.3 | -21.3 | 1.0 | 5.04 |
| May | -24.5 | -14.2 | -10.3 | 4.60 |
| Jun | -16.1 | -7.4 | -8.7 | 4.76 |
| Jul | -15.1 | 4.7 | -19.8 | 4.97 |
| Aug | -2.9 | 12.4 | -15.3 | 5.01 |
| Sep | 9.9 | 6.2 | 3.7 | 5.14 |
| Oct | 0.5 | 6.6 | -6.1 | 4.90 |
| Nov | 12.1 | 4.8 | 7.3 | 5.04 |
| Dec | -7.2 | -17.3 | 10.1 | 4.84 |
Nearby years (cm vs. average)
-0.6
+1.9
-2.1
-3.8
-1.3
-6.5
-0.2
-1.2
-3.5
-9.3
+1.1
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2009 annual mean water level ranked 42 of 46 years (-6.5 cm vs. the period average).