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Anchorage, Knik Arm water levels in 2011
Annual rank27 / 46
vs. average-1.2 cm
Highest monthly peak5.36 mSeptember 2011
Monthly mean vs. previous year
| Month | 2011 (cm) | 2010 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 10.1 | 16.6 | -6.5 | 5.22 |
| Apr | -14.2 | -6.6 | -7.6 | 4.98 |
| May | -15.2 | -18.9 | 3.7 | 4.84 |
| Jun | -13.3 | -14.7 | 1.4 | 4.45 |
| Jul | -4.2 | -12.3 | 8.1 | 4.58 |
| Aug | 2.4 | -8.5 | 10.9 | 4.91 |
| Sep | 12.9 | -8.3 | 21.2 | 5.36 |
| Oct | 10.3 | 7.3 | 3.0 | 5.29 |
| Nov | -15.0 | -1.7 | -13.3 | 4.95 |
| Dec | -5.5 | – | – | 4.99 |
Nearby years (cm vs. average)
-2.1
-3.8
-1.3
-6.5
-0.2
-1.2
-3.5
-9.3
+1.1
+1.6
+5.2
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2011 annual mean water level ranked 27 of 46 years (-1.2 cm vs. the period average).